Home / 38,458.20-57,625.20-21,768.60

Finding the Fourth Proportional to 38,458.20, 57,625.20 and 21,768.60

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Solution

The fourth proportional to 38,458.20, 57,625.20 and 21,768.60 is: 32,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458.20 : 57,625.20 = 21,768.60 : x
  2. Step 2: Convert to fraction form
    38,458.20/57,625.20 = 21,768.60/x
  3. Step 3: Cross multiply
    38,458.20x = 57,625.20 × 21,768.60
  4. Step 4: Simplify right side
    38,458.20x = 1,254,419,928.72
  5. Step 5: Solve for x
    x = 1,254,419,928.72/38,458.20
  6. Step 6: Final answer
    x = 32,617.75

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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.