Home / 28,737.91-43,134-17,666.20

Finding the Fourth Proportional to 28,737.91, 43,134 and 17,666.20

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Solution

The fourth proportional to 28,737.91, 43,134 and 17,666.20 is: 26,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.91 : 43,134 = 17,666.20 : x
  2. Step 2: Convert to fraction form
    28,737.91/43,134 = 17,666.20/x
  3. Step 3: Cross multiply
    28,737.91x = 43,134 × 17,666.20
  4. Step 4: Simplify right side
    28,737.91x = 762,013,870.80
  5. Step 5: Solve for x
    x = 762,013,870.80/28,737.91
  6. Step 6: Final answer
    x = 26,515.98

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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.