The third proportional to 38 and 15 is -
A. $$\frac{{15 \times 15}}{{38}}$$
B. $$\frac{{38 \times 15}}{2}$$
C. $$\frac{{38 \times 38}}{{15}}$$
D. $$\frac{{15}}{{38 \times 38}}$$
Answer: Option A
Solution (By Examveda Team)
Let the third proportional to 38 and 15 be x$$\eqalign{ & {\text{Then,}} \cr & \Rightarrow 38:15::15:x \cr & \Rightarrow 38x = 15 \times 15 \cr & \Rightarrow x = \frac{{15 \times 15}}{{38}} \cr} $$
This Question Belongs to Arithmetic Ability >> Ratio
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