Home / 20,949.48-31,424.21-6,158.52

Finding the Fourth Proportional to 20,949.48, 31,424.21 and 6,158.52

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Solution

The fourth proportional to 20,949.48, 31,424.21 and 6,158.52 is: 9,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.48 : 31,424.21 = 6,158.52 : x
  2. Step 2: Convert to fraction form
    20,949.48/31,424.21 = 6,158.52/x
  3. Step 3: Cross multiply
    20,949.48x = 31,424.21 × 6,158.52
  4. Step 4: Simplify right side
    20,949.48x = 193,526,641.17
  5. Step 5: Solve for x
    x = 193,526,641.17/20,949.48
  6. Step 6: Final answer
    x = 9,237.78

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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.