Home / 38,147.22-57,147.03-21,456.54

Finding the Fourth Proportional to 38,147.22, 57,147.03 and 21,456.54

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Solution

The fourth proportional to 38,147.22, 57,147.03 and 21,456.54 is: 32,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.22 : 57,147.03 = 21,456.54 : x
  2. Step 2: Convert to fraction form
    38,147.22/57,147.03 = 21,456.54/x
  3. Step 3: Cross multiply
    38,147.22x = 57,147.03 × 21,456.54
  4. Step 4: Simplify right side
    38,147.22x = 1,226,177,535.08
  5. Step 5: Solve for x
    x = 1,226,177,535.08/38,147.22
  6. Step 6: Final answer
    x = 32,143.30

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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.