Question : The fourth proportional to 8, 32, and 13 is:
Option 1: 39
Option 2: 40
Option 3: 26
Option 4: 52
Answer (1)
23rd Jan, 2024
Correct Answer: 52
Solution :
Let the fourth proportional to 8, 32, and 13 be $x$.
⇒ $8:32:: 13:x$
⇒ $\frac{8}{32} = \frac{13}{x}$
⇒ $x = 13\times 4$
$\therefore x = 52$
Hence, the correct answer is 52.
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