Home / 25,854.86-38,815.11-21,983.87

Finding the Fourth Proportional to 25,854.86, 38,815.11 and 21,983.87

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Solution

The fourth proportional to 25,854.86, 38,815.11 and 21,983.87 is: 33,003.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,854.86 : 38,815.11 = 21,983.87 : x
  2. Step 2: Convert to fraction form
    25,854.86/38,815.11 = 21,983.87/x
  3. Step 3: Cross multiply
    25,854.86x = 38,815.11 × 21,983.87
  4. Step 4: Simplify right side
    25,854.86x = 853,306,332.28
  5. Step 5: Solve for x
    x = 853,306,332.28/25,854.86
  6. Step 6: Final answer
    x = 33,003.71

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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.