Finding the Fourth Proportional to 40,216.20, 55,493.84 and 22,306.71
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Solution
The fourth proportional to 40,216.20, 55,493.84 and 22,306.71 is: 30,780.75
Step by Step Solution
- Step 1: Write the proportion equation
40,216.20 : 55,493.84 = 22,306.71 : x - Step 2: Convert to fraction form
40,216.20/55,493.84 = 22,306.71/x - Step 3: Cross multiply
40,216.20x = 55,493.84 × 22,306.71 - Step 4: Simplify right side
40,216.20x = 1,237,884,884.13 - Step 5: Solve for x
x = 1,237,884,884.13/40,216.20 - Step 6: Final answer
x = 30,780.75
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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.