Home / 19,310.41-28,949.14-18,391.87

Finding the Fourth Proportional to 19,310.41, 28,949.14 and 18,391.87

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Solution

The fourth proportional to 19,310.41, 28,949.14 and 18,391.87 is: 27,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.41 : 28,949.14 = 18,391.87 : x
  2. Step 2: Convert to fraction form
    19,310.41/28,949.14 = 18,391.87/x
  3. Step 3: Cross multiply
    19,310.41x = 28,949.14 × 18,391.87
  4. Step 4: Simplify right side
    19,310.41x = 532,428,819.49
  5. Step 5: Solve for x
    x = 532,428,819.49/19,310.41
  6. Step 6: Final answer
    x = 27,572.11

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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.