Home / 20,107.38-27,744.14-12,150.05

Finding the Fourth Proportional to 20,107.38, 27,744.14 and 12,150.05

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Solution

The fourth proportional to 20,107.38, 27,744.14 and 12,150.05 is: 16,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.38 : 27,744.14 = 12,150.05 : x
  2. Step 2: Convert to fraction form
    20,107.38/27,744.14 = 12,150.05/x
  3. Step 3: Cross multiply
    20,107.38x = 27,744.14 × 12,150.05
  4. Step 4: Simplify right side
    20,107.38x = 337,092,579.86
  5. Step 5: Solve for x
    x = 337,092,579.86/20,107.38
  6. Step 6: Final answer
    x = 16,764.62

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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.