Home / 26,149.20-39,154.68-13,811.28

Finding the Fourth Proportional to 26,149.20, 39,154.68 and 13,811.28

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Solution

The fourth proportional to 26,149.20, 39,154.68 and 13,811.28 is: 20,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,149.20 : 39,154.68 = 13,811.28 : x
  2. Step 2: Convert to fraction form
    26,149.20/39,154.68 = 13,811.28/x
  3. Step 3: Cross multiply
    26,149.20x = 39,154.68 × 13,811.28
  4. Step 4: Simplify right side
    26,149.20x = 540,776,248.79
  5. Step 5: Solve for x
    x = 540,776,248.79/26,149.20
  6. Step 6: Final answer
    x = 20,680.41

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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.