Home / 39,518.30-54,540.24-25,917.78

Finding the Fourth Proportional to 39,518.30, 54,540.24 and 25,917.78

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Solution

The fourth proportional to 39,518.30, 54,540.24 and 25,917.78 is: 35,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,518.30 : 54,540.24 = 25,917.78 : x
  2. Step 2: Convert to fraction form
    39,518.30/54,540.24 = 25,917.78/x
  3. Step 3: Cross multiply
    39,518.30x = 54,540.24 × 25,917.78
  4. Step 4: Simplify right side
    39,518.30x = 1,413,561,941.47
  5. Step 5: Solve for x
    x = 1,413,561,941.47/39,518.30
  6. Step 6: Final answer
    x = 35,769.80

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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.