Home / 20,200.65-27,876.92-11,249.88

Finding the Fourth Proportional to 20,200.65, 27,876.92 and 11,249.88

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Solution

The fourth proportional to 20,200.65, 27,876.92 and 11,249.88 is: 15,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.65 : 27,876.92 = 11,249.88 : x
  2. Step 2: Convert to fraction form
    20,200.65/27,876.92 = 11,249.88/x
  3. Step 3: Cross multiply
    20,200.65x = 27,876.92 × 11,249.88
  4. Step 4: Simplify right side
    20,200.65x = 313,612,004.77
  5. Step 5: Solve for x
    x = 313,612,004.77/20,200.65
  6. Step 6: Final answer
    x = 15,524.85

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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.