Home / 20,234.20-30,335.10-8,537.80

Finding the Fourth Proportional to 20,234.20, 30,335.10 and 8,537.80

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Solution

The fourth proportional to 20,234.20, 30,335.10 and 8,537.80 is: 12,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.20 : 30,335.10 = 8,537.80 : x
  2. Step 2: Convert to fraction form
    20,234.20/30,335.10 = 8,537.80/x
  3. Step 3: Cross multiply
    20,234.20x = 30,335.10 × 8,537.80
  4. Step 4: Simplify right side
    20,234.20x = 258,995,016.78
  5. Step 5: Solve for x
    x = 258,995,016.78/20,234.20
  6. Step 6: Final answer
    x = 12,799.86

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1.5x scale

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.