Home / 38,454.20-57,728.10-21,825.80

Finding the Fourth Proportional to 38,454.20, 57,728.10 and 21,825.80

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Solution

The fourth proportional to 38,454.20, 57,728.10 and 21,825.80 is: 32,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.20 : 57,728.10 = 21,825.80 : x
  2. Step 2: Convert to fraction form
    38,454.20/57,728.10 = 21,825.80/x
  3. Step 3: Cross multiply
    38,454.20x = 57,728.10 × 21,825.80
  4. Step 4: Simplify right side
    38,454.20x = 1,259,961,964.98
  5. Step 5: Solve for x
    x = 1,259,961,964.98/38,454.20
  6. Step 6: Final answer
    x = 32,765.26

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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.