Home / 22,139.39-33,176.89-13,687.85

Finding the Fourth Proportional to 22,139.39, 33,176.89 and 13,687.85

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Solution

The fourth proportional to 22,139.39, 33,176.89 and 13,687.85 is: 20,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.39 : 33,176.89 = 13,687.85 : x
  2. Step 2: Convert to fraction form
    22,139.39/33,176.89 = 13,687.85/x
  3. Step 3: Cross multiply
    22,139.39x = 33,176.89 × 13,687.85
  4. Step 4: Simplify right side
    22,139.39x = 454,120,393.84
  5. Step 5: Solve for x
    x = 454,120,393.84/22,139.39
  6. Step 6: Final answer
    x = 20,511.87

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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.