Home / 19,928.20-29,891.28-6,780.82

Finding the Fourth Proportional to 19,928.20, 29,891.28 and 6,780.82

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Solution

The fourth proportional to 19,928.20, 29,891.28 and 6,780.82 is: 10,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.20 : 29,891.28 = 6,780.82 : x
  2. Step 2: Convert to fraction form
    19,928.20/29,891.28 = 6,780.82/x
  3. Step 3: Cross multiply
    19,928.20x = 29,891.28 × 6,780.82
  4. Step 4: Simplify right side
    19,928.20x = 202,687,389.25
  5. Step 5: Solve for x
    x = 202,687,389.25/19,928.20
  6. Step 6: Final answer
    x = 10,170.88

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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.