Home / 36,143.31-54,204.56-12,449.90

Finding the Fourth Proportional to 36,143.31, 54,204.56 and 12,449.90

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Solution

The fourth proportional to 36,143.31, 54,204.56 and 12,449.90 is: 18,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.31 : 54,204.56 = 12,449.90 : x
  2. Step 2: Convert to fraction form
    36,143.31/54,204.56 = 12,449.90/x
  3. Step 3: Cross multiply
    36,143.31x = 54,204.56 × 12,449.90
  4. Step 4: Simplify right side
    36,143.31x = 674,841,365.73
  5. Step 5: Solve for x
    x = 674,841,365.73/36,143.31
  6. Step 6: Final answer
    x = 18,671.27

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1.5x scale

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.