Home / 20,008.30-29,998.05-11,245.90

Finding the Fourth Proportional to 20,008.30, 29,998.05 and 11,245.90

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Solution

The fourth proportional to 20,008.30, 29,998.05 and 11,245.90 is: 16,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.30 : 29,998.05 = 11,245.90 : x
  2. Step 2: Convert to fraction form
    20,008.30/29,998.05 = 11,245.90/x
  3. Step 3: Cross multiply
    20,008.30x = 29,998.05 × 11,245.90
  4. Step 4: Simplify right side
    20,008.30x = 337,355,070.50
  5. Step 5: Solve for x
    x = 337,355,070.50/20,008.30
  6. Step 6: Final answer
    x = 16,860.76

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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.