Home / 20,412.27-30,613.75-5,622.48

Finding the Fourth Proportional to 20,412.27, 30,613.75 and 5,622.48

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Solution

The fourth proportional to 20,412.27, 30,613.75 and 5,622.48 is: 8,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.27 : 30,613.75 = 5,622.48 : x
  2. Step 2: Convert to fraction form
    20,412.27/30,613.75 = 5,622.48/x
  3. Step 3: Cross multiply
    20,412.27x = 30,613.75 × 5,622.48
  4. Step 4: Simplify right side
    20,412.27x = 172,125,183.04
  5. Step 5: Solve for x
    x = 172,125,183.04/20,412.27
  6. Step 6: Final answer
    x = 8,432.44

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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.