Home / 38,229.20-57,343.80-26,419.40

Finding the Fourth Proportional to 38,229.20, 57,343.80 and 26,419.40

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Solution

The fourth proportional to 38,229.20, 57,343.80 and 26,419.40 is: 39,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,229.20 : 57,343.80 = 26,419.40 : x
  2. Step 2: Convert to fraction form
    38,229.20/57,343.80 = 26,419.40/x
  3. Step 3: Cross multiply
    38,229.20x = 57,343.80 × 26,419.40
  4. Step 4: Simplify right side
    38,229.20x = 1,514,988,789.72
  5. Step 5: Solve for x
    x = 1,514,988,789.72/38,229.20
  6. Step 6: Final answer
    x = 39,629.10

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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.