Home / 20,481.14-28,261.17-11,982.83

Finding the Fourth Proportional to 20,481.14, 28,261.17 and 11,982.83

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Solution

The fourth proportional to 20,481.14, 28,261.17 and 11,982.83 is: 16,534.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.14 : 28,261.17 = 11,982.83 : x
  2. Step 2: Convert to fraction form
    20,481.14/28,261.17 = 11,982.83/x
  3. Step 3: Cross multiply
    20,481.14x = 28,261.17 × 11,982.83
  4. Step 4: Simplify right side
    20,481.14x = 338,648,654.41
  5. Step 5: Solve for x
    x = 338,648,654.41/20,481.14
  6. Step 6: Final answer
    x = 16,534.66

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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.