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Finding the Fourth Proportional to 21,704.43, 32,545.84 and 6,911.43

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Solution

The fourth proportional to 21,704.43, 32,545.84 and 6,911.43 is: 10,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.43 : 32,545.84 = 6,911.43 : x
  2. Step 2: Convert to fraction form
    21,704.43/32,545.84 = 6,911.43/x
  3. Step 3: Cross multiply
    21,704.43x = 32,545.84 × 6,911.43
  4. Step 4: Simplify right side
    21,704.43x = 224,938,294.95
  5. Step 5: Solve for x
    x = 224,938,294.95/21,704.43
  6. Step 6: Final answer
    x = 10,363.70

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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.