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Finding the Fourth Proportional to 21,737.70, 32,606.55 and 8,584.74

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Solution

The fourth proportional to 21,737.70, 32,606.55 and 8,584.74 is: 12,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,737.70 : 32,606.55 = 8,584.74 : x
  2. Step 2: Convert to fraction form
    21,737.70/32,606.55 = 8,584.74/x
  3. Step 3: Cross multiply
    21,737.70x = 32,606.55 × 8,584.74
  4. Step 4: Simplify right side
    21,737.70x = 279,918,754.05
  5. Step 5: Solve for x
    x = 279,918,754.05/21,737.70
  6. Step 6: Final answer
    x = 12,877.11

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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.