Home / 28,753.76-43,149.08-13,954.61

Finding the Fourth Proportional to 28,753.76, 43,149.08 and 13,954.61

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Solution

The fourth proportional to 28,753.76, 43,149.08 and 13,954.61 is: 20,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.76 : 43,149.08 = 13,954.61 : x
  2. Step 2: Convert to fraction form
    28,753.76/43,149.08 = 13,954.61/x
  3. Step 3: Cross multiply
    28,753.76x = 43,149.08 × 13,954.61
  4. Step 4: Simplify right side
    28,753.76x = 602,128,726.02
  5. Step 5: Solve for x
    x = 602,128,726.02/28,753.76
  6. Step 6: Final answer
    x = 20,940.87

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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.