Home / 20,545.24-30,811.26-6,691

Finding the Fourth Proportional to 20,545.24, 30,811.26 and 6,691

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Solution

The fourth proportional to 20,545.24, 30,811.26 and 6,691 is: 10,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.24 : 30,811.26 = 6,691 : x
  2. Step 2: Convert to fraction form
    20,545.24/30,811.26 = 6,691/x
  3. Step 3: Cross multiply
    20,545.24x = 30,811.26 × 6,691
  4. Step 4: Simplify right side
    20,545.24x = 206,158,140.66
  5. Step 5: Solve for x
    x = 206,158,140.66/20,545.24
  6. Step 6: Final answer
    x = 10,034.35

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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.