Home / 20,149.29-30,220.56-5,358.42

Finding the Fourth Proportional to 20,149.29, 30,220.56 and 5,358.42

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Solution

The fourth proportional to 20,149.29, 30,220.56 and 5,358.42 is: 8,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.29 : 30,220.56 = 5,358.42 : x
  2. Step 2: Convert to fraction form
    20,149.29/30,220.56 = 5,358.42/x
  3. Step 3: Cross multiply
    20,149.29x = 30,220.56 × 5,358.42
  4. Step 4: Simplify right side
    20,149.29x = 161,934,453.12
  5. Step 5: Solve for x
    x = 161,934,453.12/20,149.29
  6. Step 6: Final answer
    x = 8,036.73

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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.