Home / 20,008.89-29,997.14-8,330.85

Finding the Fourth Proportional to 20,008.89, 29,997.14 and 8,330.85

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Solution

The fourth proportional to 20,008.89, 29,997.14 and 8,330.85 is: 12,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.89 : 29,997.14 = 8,330.85 : x
  2. Step 2: Convert to fraction form
    20,008.89/29,997.14 = 8,330.85/x
  3. Step 3: Cross multiply
    20,008.89x = 29,997.14 × 8,330.85
  4. Step 4: Simplify right side
    20,008.89x = 249,901,632.11
  5. Step 5: Solve for x
    x = 249,901,632.11/20,008.89
  6. Step 6: Final answer
    x = 12,489.53

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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.