Finding the Fourth Proportional to 39,707.17, 54,793.42 and 21,802.09
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Solution
The fourth proportional to 39,707.17, 54,793.42 and 21,802.09 is: 30,085.53
Step by Step Solution
- Step 1: Write the proportion equation
39,707.17 : 54,793.42 = 21,802.09 : x - Step 2: Convert to fraction form
39,707.17/54,793.42 = 21,802.09/x - Step 3: Cross multiply
39,707.17x = 54,793.42 × 21,802.09 - Step 4: Simplify right side
39,707.17x = 1,194,611,074.25 - Step 5: Solve for x
x = 1,194,611,074.25/39,707.17 - Step 6: Final answer
x = 30,085.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.