Home / 41,979.06-57,931.20-23,115.78

Finding the Fourth Proportional to 41,979.06, 57,931.20 and 23,115.78

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Solution

The fourth proportional to 41,979.06, 57,931.20 and 23,115.78 is: 31,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979.06 : 57,931.20 = 23,115.78 : x
  2. Step 2: Convert to fraction form
    41,979.06/57,931.20 = 23,115.78/x
  3. Step 3: Cross multiply
    41,979.06x = 57,931.20 × 23,115.78
  4. Step 4: Simplify right side
    41,979.06x = 1,339,124,874.34
  5. Step 5: Solve for x
    x = 1,339,124,874.34/41,979.06
  6. Step 6: Final answer
    x = 31,899.83

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1.5x scale

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.