Home / 20,104.29-27,743.25-12,145.13

Finding the Fourth Proportional to 20,104.29, 27,743.25 and 12,145.13

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Solution

The fourth proportional to 20,104.29, 27,743.25 and 12,145.13 is: 16,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.29 : 27,743.25 = 12,145.13 : x
  2. Step 2: Convert to fraction form
    20,104.29/27,743.25 = 12,145.13/x
  3. Step 3: Cross multiply
    20,104.29x = 27,743.25 × 12,145.13
  4. Step 4: Simplify right side
    20,104.29x = 336,945,239.16
  5. Step 5: Solve for x
    x = 336,945,239.16/20,104.29
  6. Step 6: Final answer
    x = 16,759.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.