Home / 20,923.30-31,385.21-6,132.52

Finding the Fourth Proportional to 20,923.30, 31,385.21 and 6,132.52

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Solution

The fourth proportional to 20,923.30, 31,385.21 and 6,132.52 is: 9,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.30 : 31,385.21 = 6,132.52 : x
  2. Step 2: Convert to fraction form
    20,923.30/31,385.21 = 6,132.52/x
  3. Step 3: Cross multiply
    20,923.30x = 31,385.21 × 6,132.52
  4. Step 4: Simplify right side
    20,923.30x = 192,470,428.03
  5. Step 5: Solve for x
    x = 192,470,428.03/20,923.30
  6. Step 6: Final answer
    x = 9,198.86

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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.