Question

If 18, x, x, 50 are in proportion, find the value of x

Answer 1

Given that 18,x,x,50 are in proportion.

18:x::x:50

18/x = x/50

x^2 = 50 * 18

x^2 = 900

x = 30.


Hope this helps!

Answer 2

Answer:

Value of x = 30

Step-by-step explanation:

We know that,

$If \: a,b,c \:and \:d \: are \: in \: proportion\\then \: bc=ad$

Here, it is given that ,

18,x,x,50 are in proportion .

$18: x = x : 50$

$\implies x \times x = 18 \times 50$

$\implies x^{2}= 900$

$\implies x = \sqrt{900}$

$\implies x = \sqrt{30^{2}}$

$\implies x = 30$

Therefore,

Value of x = 30

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