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Finding the Fourth Proportional to 39,456.75, 54,451.94 and 22,689.75

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Solution

The fourth proportional to 39,456.75, 54,451.94 and 22,689.75 is: 31,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.75 : 54,451.94 = 22,689.75 : x
  2. Step 2: Convert to fraction form
    39,456.75/54,451.94 = 22,689.75/x
  3. Step 3: Cross multiply
    39,456.75x = 54,451.94 × 22,689.75
  4. Step 4: Simplify right side
    39,456.75x = 1,235,500,792.17
  5. Step 5: Solve for x
    x = 1,235,500,792.17/39,456.75
  6. Step 6: Final answer
    x = 31,312.79

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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.