Home / 27,979.88-38,617.42-16,043.30

Finding the Fourth Proportional to 27,979.88, 38,617.42 and 16,043.30

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Solution

The fourth proportional to 27,979.88, 38,617.42 and 16,043.30 is: 22,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.88 : 38,617.42 = 16,043.30 : x
  2. Step 2: Convert to fraction form
    27,979.88/38,617.42 = 16,043.30/x
  3. Step 3: Cross multiply
    27,979.88x = 38,617.42 × 16,043.30
  4. Step 4: Simplify right side
    27,979.88x = 619,550,854.29
  5. Step 5: Solve for x
    x = 619,550,854.29/27,979.88
  6. Step 6: Final answer
    x = 22,142.73

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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.