Home / 20,226.26-30,337.22-7,078.88

Finding the Fourth Proportional to 20,226.26, 30,337.22 and 7,078.88

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Solution

The fourth proportional to 20,226.26, 30,337.22 and 7,078.88 is: 10,617.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.26 : 30,337.22 = 7,078.88 : x
  2. Step 2: Convert to fraction form
    20,226.26/30,337.22 = 7,078.88/x
  3. Step 3: Cross multiply
    20,226.26x = 30,337.22 × 7,078.88
  4. Step 4: Simplify right side
    20,226.26x = 214,753,539.91
  5. Step 5: Solve for x
    x = 214,753,539.91/20,226.26
  6. Step 6: Final answer
    x = 10,617.56

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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.