Home / 39,928.59-55,101.17-22,023.20

Finding the Fourth Proportional to 39,928.59, 55,101.17 and 22,023.20

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Solution

The fourth proportional to 39,928.59, 55,101.17 and 22,023.20 is: 30,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.59 : 55,101.17 = 22,023.20 : x
  2. Step 2: Convert to fraction form
    39,928.59/55,101.17 = 22,023.20/x
  3. Step 3: Cross multiply
    39,928.59x = 55,101.17 × 22,023.20
  4. Step 4: Simplify right side
    39,928.59x = 1,213,503,701.52
  5. Step 5: Solve for x
    x = 1,213,503,701.52/39,928.59
  6. Step 6: Final answer
    x = 30,391.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.