Home / 41,978.25-57,930.39-23,115.78

Finding the Fourth Proportional to 41,978.25, 57,930.39 and 23,115.78

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Solution

The fourth proportional to 41,978.25, 57,930.39 and 23,115.78 is: 31,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,978.25 : 57,930.39 = 23,115.78 : x
  2. Step 2: Convert to fraction form
    41,978.25/57,930.39 = 23,115.78/x
  3. Step 3: Cross multiply
    41,978.25x = 57,930.39 × 23,115.78
  4. Step 4: Simplify right side
    41,978.25x = 1,339,106,150.55
  5. Step 5: Solve for x
    x = 1,339,106,150.55/41,978.25
  6. Step 6: Final answer
    x = 31,900.00

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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.