Home / 20,040.85-27,644.29-13,234.92

Finding the Fourth Proportional to 20,040.85, 27,644.29 and 13,234.92

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Solution

The fourth proportional to 20,040.85, 27,644.29 and 13,234.92 is: 18,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.85 : 27,644.29 = 13,234.92 : x
  2. Step 2: Convert to fraction form
    20,040.85/27,644.29 = 13,234.92/x
  3. Step 3: Cross multiply
    20,040.85x = 27,644.29 × 13,234.92
  4. Step 4: Simplify right side
    20,040.85x = 365,869,966.61
  5. Step 5: Solve for x
    x = 365,869,966.61/20,040.85
  6. Step 6: Final answer
    x = 18,256.21

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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.