Home / 20,010.72-30,016.16-6,863.20

Finding the Fourth Proportional to 20,010.72, 30,016.16 and 6,863.20

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Solution

The fourth proportional to 20,010.72, 30,016.16 and 6,863.20 is: 10,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.72 : 30,016.16 = 6,863.20 : x
  2. Step 2: Convert to fraction form
    20,010.72/30,016.16 = 6,863.20/x
  3. Step 3: Cross multiply
    20,010.72x = 30,016.16 × 6,863.20
  4. Step 4: Simplify right side
    20,010.72x = 206,006,909.31
  5. Step 5: Solve for x
    x = 206,006,909.31/20,010.72
  6. Step 6: Final answer
    x = 10,294.83

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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.