Home / 39,876.66-55,030.05-25,711.38

Finding the Fourth Proportional to 39,876.66, 55,030.05 and 25,711.38

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Solution

The fourth proportional to 39,876.66, 55,030.05 and 25,711.38 is: 35,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876.66 : 55,030.05 = 25,711.38 : x
  2. Step 2: Convert to fraction form
    39,876.66/55,030.05 = 25,711.38/x
  3. Step 3: Cross multiply
    39,876.66x = 55,030.05 × 25,711.38
  4. Step 4: Simplify right side
    39,876.66x = 1,414,898,526.97
  5. Step 5: Solve for x
    x = 1,414,898,526.97/39,876.66
  6. Step 6: Final answer
    x = 35,481.87

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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.