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Finding the Fourth Proportional to 22,959.57, 34,439.64 and 8,920.38

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Solution

The fourth proportional to 22,959.57, 34,439.64 and 8,920.38 is: 13,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,959.57 : 34,439.64 = 8,920.38 : x
  2. Step 2: Convert to fraction form
    22,959.57/34,439.64 = 8,920.38/x
  3. Step 3: Cross multiply
    22,959.57x = 34,439.64 × 8,920.38
  4. Step 4: Simplify right side
    22,959.57x = 307,214,675.86
  5. Step 5: Solve for x
    x = 307,214,675.86/22,959.57
  6. Step 6: Final answer
    x = 13,380.68

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1.5x scale

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.