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Finding the Fourth Proportional to 29,375.92, 40,538.88 and 15,947.20

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Solution

The fourth proportional to 29,375.92, 40,538.88 and 15,947.20 is: 22,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,375.92 : 40,538.88 = 15,947.20 : x
  2. Step 2: Convert to fraction form
    29,375.92/40,538.88 = 15,947.20/x
  3. Step 3: Cross multiply
    29,375.92x = 40,538.88 × 15,947.20
  4. Step 4: Simplify right side
    29,375.92x = 646,481,627.14
  5. Step 5: Solve for x
    x = 646,481,627.14/29,375.92
  6. Step 6: Final answer
    x = 22,007.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.