Home / 26,727.20-40,123.20-13,572.80

Finding the Fourth Proportional to 26,727.20, 40,123.20 and 13,572.80

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Solution

The fourth proportional to 26,727.20, 40,123.20 and 13,572.80 is: 20,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,727.20 : 40,123.20 = 13,572.80 : x
  2. Step 2: Convert to fraction form
    26,727.20/40,123.20 = 13,572.80/x
  3. Step 3: Cross multiply
    26,727.20x = 40,123.20 × 13,572.80
  4. Step 4: Simplify right side
    26,727.20x = 544,584,168.96
  5. Step 5: Solve for x
    x = 544,584,168.96/26,727.20
  6. Step 6: Final answer
    x = 20,375.65

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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.