Home / 38,519.20-57,778.80-19,773.10

Finding the Fourth Proportional to 38,519.20, 57,778.80 and 19,773.10

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Solution

The fourth proportional to 38,519.20, 57,778.80 and 19,773.10 is: 29,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.20 : 57,778.80 = 19,773.10 : x
  2. Step 2: Convert to fraction form
    38,519.20/57,778.80 = 19,773.10/x
  3. Step 3: Cross multiply
    38,519.20x = 57,778.80 × 19,773.10
  4. Step 4: Simplify right side
    38,519.20x = 1,142,465,990.28
  5. Step 5: Solve for x
    x = 1,142,465,990.28/38,519.20
  6. Step 6: Final answer
    x = 29,659.65

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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.