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Finding the Fourth Proportional to 28,757.71, 43,140.92 and 9,034.41

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Solution

The fourth proportional to 28,757.71, 43,140.92 and 9,034.41 is: 13,552.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.71 : 43,140.92 = 9,034.41 : x
  2. Step 2: Convert to fraction form
    28,757.71/43,140.92 = 9,034.41/x
  3. Step 3: Cross multiply
    28,757.71x = 43,140.92 × 9,034.41
  4. Step 4: Simplify right side
    28,757.71x = 389,752,713.89
  5. Step 5: Solve for x
    x = 389,752,713.89/28,757.71
  6. Step 6: Final answer
    x = 13,552.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.