Home / 22,487.50-31,003.90-18,439.41

Finding the Fourth Proportional to 22,487.50, 31,003.90 and 18,439.41

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Solution

The fourth proportional to 22,487.50, 31,003.90 and 18,439.41 is: 25,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.50 : 31,003.90 = 18,439.41 : x
  2. Step 2: Convert to fraction form
    22,487.50/31,003.90 = 18,439.41/x
  3. Step 3: Cross multiply
    22,487.50x = 31,003.90 × 18,439.41
  4. Step 4: Simplify right side
    22,487.50x = 571,693,623.70
  5. Step 5: Solve for x
    x = 571,693,623.70/22,487.50
  6. Step 6: Final answer
    x = 25,422.73

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1.5x scale

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.