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Finding the Fourth Proportional to 29,545.56, 40,772.16 and 16,971.12

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Solution

The fourth proportional to 29,545.56, 40,772.16 and 16,971.12 is: 23,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,545.56 : 40,772.16 = 16,971.12 : x
  2. Step 2: Convert to fraction form
    29,545.56/40,772.16 = 16,971.12/x
  3. Step 3: Cross multiply
    29,545.56x = 40,772.16 × 16,971.12
  4. Step 4: Simplify right side
    29,545.56x = 691,949,220.02
  5. Step 5: Solve for x
    x = 691,949,220.02/29,545.56
  6. Step 6: Final answer
    x = 23,419.74

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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.