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Finding the Fourth Proportional to 28,294.73, 42,446.49 and 8,568.59

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Solution

The fourth proportional to 28,294.73, 42,446.49 and 8,568.59 is: 12,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.73 : 42,446.49 = 8,568.59 : x
  2. Step 2: Convert to fraction form
    28,294.73/42,446.49 = 8,568.59/x
  3. Step 3: Cross multiply
    28,294.73x = 42,446.49 × 8,568.59
  4. Step 4: Simplify right side
    28,294.73x = 363,706,569.75
  5. Step 5: Solve for x
    x = 363,706,569.75/28,294.73
  6. Step 6: Final answer
    x = 12,854.22

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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.