Home / 20,927.29-31,379.11-6,883.52

Finding the Fourth Proportional to 20,927.29, 31,379.11 and 6,883.52

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Solution

The fourth proportional to 20,927.29, 31,379.11 and 6,883.52 is: 10,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.29 : 31,379.11 = 6,883.52 : x
  2. Step 2: Convert to fraction form
    20,927.29/31,379.11 = 6,883.52/x
  3. Step 3: Cross multiply
    20,927.29x = 31,379.11 × 6,883.52
  4. Step 4: Simplify right side
    20,927.29x = 215,998,731.27
  5. Step 5: Solve for x
    x = 215,998,731.27/20,927.29
  6. Step 6: Final answer
    x = 10,321.39

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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.