Home / 38,115.64-57,192.94-18,147.72

Finding the Fourth Proportional to 38,115.64, 57,192.94 and 18,147.72

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Solution

The fourth proportional to 38,115.64, 57,192.94 and 18,147.72 is: 27,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.64 : 57,192.94 = 18,147.72 : x
  2. Step 2: Convert to fraction form
    38,115.64/57,192.94 = 18,147.72/x
  3. Step 3: Cross multiply
    38,115.64x = 57,192.94 × 18,147.72
  4. Step 4: Simplify right side
    38,115.64x = 1,037,921,461.10
  5. Step 5: Solve for x
    x = 1,037,921,461.10/38,115.64
  6. Step 6: Final answer
    x = 27,230.85

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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.