Home / 20,886.27-31,332.38-6,843.29

Finding the Fourth Proportional to 20,886.27, 31,332.38 and 6,843.29

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Solution

The fourth proportional to 20,886.27, 31,332.38 and 6,843.29 is: 10,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.27 : 31,332.38 = 6,843.29 : x
  2. Step 2: Convert to fraction form
    20,886.27/31,332.38 = 6,843.29/x
  3. Step 3: Cross multiply
    20,886.27x = 31,332.38 × 6,843.29
  4. Step 4: Simplify right side
    20,886.27x = 214,416,562.73
  5. Step 5: Solve for x
    x = 214,416,562.73/20,886.27
  6. Step 6: Final answer
    x = 10,265.91

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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.