Home / 40,138.20-60,207.91-15,190.00

Finding the Fourth Proportional to 40,138.20, 60,207.91 and 15,190.00

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Solution

The fourth proportional to 40,138.20, 60,207.91 and 15,190.00 is: 22,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.20 : 60,207.91 = 15,190.00 : x
  2. Step 2: Convert to fraction form
    40,138.20/60,207.91 = 15,190.00/x
  3. Step 3: Cross multiply
    40,138.20x = 60,207.91 × 15,190.00
  4. Step 4: Simplify right side
    40,138.20x = 914,557,964.41
  5. Step 5: Solve for x
    x = 914,557,964.41/40,138.20
  6. Step 6: Final answer
    x = 22,785.23

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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.