Home / 20,250.82-30,375.15-7,104.52

Finding the Fourth Proportional to 20,250.82, 30,375.15 and 7,104.52

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Solution

The fourth proportional to 20,250.82, 30,375.15 and 7,104.52 is: 10,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.82 : 30,375.15 = 7,104.52 : x
  2. Step 2: Convert to fraction form
    20,250.82/30,375.15 = 7,104.52/x
  3. Step 3: Cross multiply
    20,250.82x = 30,375.15 × 7,104.52
  4. Step 4: Simplify right side
    20,250.82x = 215,800,860.68
  5. Step 5: Solve for x
    x = 215,800,860.68/20,250.82
  6. Step 6: Final answer
    x = 10,656.40

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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.