Home / 20,215.52-30,337.11-7,067.90

Finding the Fourth Proportional to 20,215.52, 30,337.11 and 7,067.90

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Solution

The fourth proportional to 20,215.52, 30,337.11 and 7,067.90 is: 10,606.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.52 : 30,337.11 = 7,067.90 : x
  2. Step 2: Convert to fraction form
    20,215.52/30,337.11 = 7,067.90/x
  3. Step 3: Cross multiply
    20,215.52x = 30,337.11 × 7,067.90
  4. Step 4: Simplify right side
    20,215.52x = 214,419,735.61
  5. Step 5: Solve for x
    x = 214,419,735.61/20,215.52
  6. Step 6: Final answer
    x = 10,606.69

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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.