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The third proportional to 38 and 15 is -

1^{(15 × 15)}/₃₈
2^{(38 × 15)}/₂
3^{(38 × 38)}/₁₅
4¹⁵/_{(38 × 38)}

Answer:- 1

Explanation:-

Solution:

Let the third proportional to 38 and 15 be x.

\begin{aligned} Then, \\ \Rightarrow 38 : 15 :: 15 : x \\ \Rightarrow 38 x = 15 \times 15 \\ \Rightarrow x = \frac{15 \times 15}{38} . \end{aligned}

$\eqalign{ & {\text{Then,}} \cr & \Rightarrow 38:15::15:x \cr & \Rightarrow 38x = 15 \times 15 \cr & \Rightarrow x = \frac{{15 \times 15}}{{38}}. \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

Let the third proportional to 38 and 15 be x.

\begin{aligned} Then, \\ \Rightarrow 38 : 15 :: 15 : x \\ \Rightarrow 38 x = 15 \times 15 \\ \Rightarrow x = \frac{15 \times 15}{38} . \end{aligned}

$\eqalign{ & {\text{Then,}} \cr & \Rightarrow 38:15::15:x \cr & \Rightarrow 38x = 15 \times 15 \cr & \Rightarrow x = \frac{{15 \times 15}}{{38}}. \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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