Home / 40,862.40-61,296.68-15,891.72

Finding the Fourth Proportional to 40,862.40, 61,296.68 and 15,891.72

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Solution

The fourth proportional to 40,862.40, 61,296.68 and 15,891.72 is: 23,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,862.40 : 61,296.68 = 15,891.72 : x
  2. Step 2: Convert to fraction form
    40,862.40/61,296.68 = 15,891.72/x
  3. Step 3: Cross multiply
    40,862.40x = 61,296.68 × 15,891.72
  4. Step 4: Simplify right side
    40,862.40x = 974,109,675.49
  5. Step 5: Solve for x
    x = 974,109,675.49/40,862.40
  6. Step 6: Final answer
    x = 23,838.78

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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.