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Finding the Fourth Proportional to 38,230.60, 57,345.90 and 22,640.20

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Solution

The fourth proportional to 38,230.60, 57,345.90 and 22,640.20 is: 33,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,230.60 : 57,345.90 = 22,640.20 : x
  2. Step 2: Convert to fraction form
    38,230.60/57,345.90 = 22,640.20/x
  3. Step 3: Cross multiply
    38,230.60x = 57,345.90 × 22,640.20
  4. Step 4: Simplify right side
    38,230.60x = 1,298,322,645.18
  5. Step 5: Solve for x
    x = 1,298,322,645.18/38,230.60
  6. Step 6: Final answer
    x = 33,960.30

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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.