Home / 27,636.92-38,139.05-15,704.23

Finding the Fourth Proportional to 27,636.92, 38,139.05 and 15,704.23

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Solution

The fourth proportional to 27,636.92, 38,139.05 and 15,704.23 is: 21,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.92 : 38,139.05 = 15,704.23 : x
  2. Step 2: Convert to fraction form
    27,636.92/38,139.05 = 15,704.23/x
  3. Step 3: Cross multiply
    27,636.92x = 38,139.05 × 15,704.23
  4. Step 4: Simplify right side
    27,636.92x = 598,944,143.97
  5. Step 5: Solve for x
    x = 598,944,143.97/27,636.92
  6. Step 6: Final answer
    x = 21,671.88

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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.