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Finding the Fourth Proportional to 20,008.56, 29,963.22 and 15,087.78

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Solution

The fourth proportional to 20,008.56, 29,963.22 and 15,087.78 is: 22,594.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.56 : 29,963.22 = 15,087.78 : x
  2. Step 2: Convert to fraction form
    20,008.56/29,963.22 = 15,087.78/x
  3. Step 3: Cross multiply
    20,008.56x = 29,963.22 × 15,087.78
  4. Step 4: Simplify right side
    20,008.56x = 452,078,471.45
  5. Step 5: Solve for x
    x = 452,078,471.45/20,008.56
  6. Step 6: Final answer
    x = 22,594.25

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