Home / 20,207.97-30,324.26-8,521.19

Finding the Fourth Proportional to 20,207.97, 30,324.26 and 8,521.19

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Solution

The fourth proportional to 20,207.97, 30,324.26 and 8,521.19 is: 12,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.97 : 30,324.26 = 8,521.19 : x
  2. Step 2: Convert to fraction form
    20,207.97/30,324.26 = 8,521.19/x
  3. Step 3: Cross multiply
    20,207.97x = 30,324.26 × 8,521.19
  4. Step 4: Simplify right side
    20,207.97x = 258,398,781.07
  5. Step 5: Solve for x
    x = 258,398,781.07/20,207.97
  6. Step 6: Final answer
    x = 12,786.97

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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.