The fourth proportional to 3, 8, 18 is: Choose the correct choice.
A) 42 B) 44 C) 46 D) 48 E) 50
Let the fourth proportional to 3, 8, 18 be x.   Then, 3 : 8 : 18 : x   3x = (8 x 18)   x =	(8 x 18)/3   x=144/3= 
<gadget id="calculator">144/3</gadget>
<output>48</output>
48   Answer: Option 48
<result>D</result>
The fourth proportional to 3, 8, 18 is: