Home / 20,132.80-27,786.72-11,753.44

Finding the Fourth Proportional to 20,132.80, 27,786.72 and 11,753.44

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Solution

The fourth proportional to 20,132.80, 27,786.72 and 11,753.44 is: 16,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.80 : 27,786.72 = 11,753.44 : x
  2. Step 2: Convert to fraction form
    20,132.80/27,786.72 = 11,753.44/x
  3. Step 3: Cross multiply
    20,132.80x = 27,786.72 × 11,753.44
  4. Step 4: Simplify right side
    20,132.80x = 326,589,546.32
  5. Step 5: Solve for x
    x = 326,589,546.32/20,132.80
  6. Step 6: Final answer
    x = 16,221.76

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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.