Home / 20,545.82-30,799.56-11,171.96

Finding the Fourth Proportional to 20,545.82, 30,799.56 and 11,171.96

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Solution

The fourth proportional to 20,545.82, 30,799.56 and 11,171.96 is: 16,747.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.82 : 30,799.56 = 11,171.96 : x
  2. Step 2: Convert to fraction form
    20,545.82/30,799.56 = 11,171.96/x
  3. Step 3: Cross multiply
    20,545.82x = 30,799.56 × 11,171.96
  4. Step 4: Simplify right side
    20,545.82x = 344,091,452.34
  5. Step 5: Solve for x
    x = 344,091,452.34/20,545.82
  6. Step 6: Final answer
    x = 16,747.52

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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.