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Finding the Fourth Proportional to 21,531.75, 32,300.05 and 5,737.42

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Solution

The fourth proportional to 21,531.75, 32,300.05 and 5,737.42 is: 8,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.75 : 32,300.05 = 5,737.42 : x
  2. Step 2: Convert to fraction form
    21,531.75/32,300.05 = 5,737.42/x
  3. Step 3: Cross multiply
    21,531.75x = 32,300.05 × 5,737.42
  4. Step 4: Simplify right side
    21,531.75x = 185,318,952.87
  5. Step 5: Solve for x
    x = 185,318,952.87/21,531.75
  6. Step 6: Final answer
    x = 8,606.78

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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.