Home / 38,480.72-57,718.20-10,780.88

Finding the Fourth Proportional to 38,480.72, 57,718.20 and 10,780.88

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Solution

The fourth proportional to 38,480.72, 57,718.20 and 10,780.88 is: 16,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.72 : 57,718.20 = 10,780.88 : x
  2. Step 2: Convert to fraction form
    38,480.72/57,718.20 = 10,780.88/x
  3. Step 3: Cross multiply
    38,480.72x = 57,718.20 × 10,780.88
  4. Step 4: Simplify right side
    38,480.72x = 622,252,988.02
  5. Step 5: Solve for x
    x = 622,252,988.02/38,480.72
  6. Step 6: Final answer
    x = 16,170.51

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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.