Home / 20,542.44-30,815.56-9,452.20

Finding the Fourth Proportional to 20,542.44, 30,815.56 and 9,452.20

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Solution

The fourth proportional to 20,542.44, 30,815.56 and 9,452.20 is: 14,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.44 : 30,815.56 = 9,452.20 : x
  2. Step 2: Convert to fraction form
    20,542.44/30,815.56 = 9,452.20/x
  3. Step 3: Cross multiply
    20,542.44x = 30,815.56 × 9,452.20
  4. Step 4: Simplify right side
    20,542.44x = 291,274,836.23
  5. Step 5: Solve for x
    x = 291,274,836.23/20,542.44
  6. Step 6: Final answer
    x = 14,179.17

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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.