Home / 29,115.78-40,179.58-16,540.53

Finding the Fourth Proportional to 29,115.78, 40,179.58 and 16,540.53

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Solution

The fourth proportional to 29,115.78, 40,179.58 and 16,540.53 is: 22,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.78 : 40,179.58 = 16,540.53 : x
  2. Step 2: Convert to fraction form
    29,115.78/40,179.58 = 16,540.53/x
  3. Step 3: Cross multiply
    29,115.78x = 40,179.58 × 16,540.53
  4. Step 4: Simplify right side
    29,115.78x = 664,591,465.67
  5. Step 5: Solve for x
    x = 664,591,465.67/29,115.78
  6. Step 6: Final answer
    x = 22,825.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.