Home / 38,122.80-57,200.40-18,391.20

Finding the Fourth Proportional to 38,122.80, 57,200.40 and 18,391.20

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Solution

The fourth proportional to 38,122.80, 57,200.40 and 18,391.20 is: 27,594.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.80 : 57,200.40 = 18,391.20 : x
  2. Step 2: Convert to fraction form
    38,122.80/57,200.40 = 18,391.20/x
  3. Step 3: Cross multiply
    38,122.80x = 57,200.40 × 18,391.20
  4. Step 4: Simplify right side
    38,122.80x = 1,051,983,996.48
  5. Step 5: Solve for x
    x = 1,051,983,996.48/38,122.80
  6. Step 6: Final answer
    x = 27,594.62

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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.