Home / 28,359.12-42,545.68-11,723.91

Finding the Fourth Proportional to 28,359.12, 42,545.68 and 11,723.91

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Solution

The fourth proportional to 28,359.12, 42,545.68 and 11,723.91 is: 17,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.12 : 42,545.68 = 11,723.91 : x
  2. Step 2: Convert to fraction form
    28,359.12/42,545.68 = 11,723.91/x
  3. Step 3: Cross multiply
    28,359.12x = 42,545.68 × 11,723.91
  4. Step 4: Simplify right side
    28,359.12x = 498,801,510.48
  5. Step 5: Solve for x
    x = 498,801,510.48/28,359.12
  6. Step 6: Final answer
    x = 17,588.75

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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.