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Finding the Fourth Proportional to 29,557.52, 40,788.10 and 16,128.56

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Solution

The fourth proportional to 29,557.52, 40,788.10 and 16,128.56 is: 22,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,557.52 : 40,788.10 = 16,128.56 : x
  2. Step 2: Convert to fraction form
    29,557.52/40,788.10 = 16,128.56/x
  3. Step 3: Cross multiply
    29,557.52x = 40,788.10 × 16,128.56
  4. Step 4: Simplify right side
    29,557.52x = 657,853,318.14
  5. Step 5: Solve for x
    x = 657,853,318.14/29,557.52
  6. Step 6: Final answer
    x = 22,256.72

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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.