Home / 20,454.24-28,227.68-11,961.84

Finding the Fourth Proportional to 20,454.24, 28,227.68 and 11,961.84

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Solution

The fourth proportional to 20,454.24, 28,227.68 and 11,961.84 is: 16,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.24 : 28,227.68 = 11,961.84 : x
  2. Step 2: Convert to fraction form
    20,454.24/28,227.68 = 11,961.84/x
  3. Step 3: Cross multiply
    20,454.24x = 28,227.68 × 11,961.84
  4. Step 4: Simplify right side
    20,454.24x = 337,654,991.73
  5. Step 5: Solve for x
    x = 337,654,991.73/20,454.24
  6. Step 6: Final answer
    x = 16,507.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.