Home / 27,979.97-38,600.21-16,040.57

Finding the Fourth Proportional to 27,979.97, 38,600.21 and 16,040.57

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Solution

The fourth proportional to 27,979.97, 38,600.21 and 16,040.57 is: 22,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.97 : 38,600.21 = 16,040.57 : x
  2. Step 2: Convert to fraction form
    27,979.97/38,600.21 = 16,040.57/x
  3. Step 3: Cross multiply
    27,979.97x = 38,600.21 × 16,040.57
  4. Step 4: Simplify right side
    27,979.97x = 619,169,217.62
  5. Step 5: Solve for x
    x = 619,169,217.62/27,979.97
  6. Step 6: Final answer
    x = 22,129.02

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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.