Home / 38,230.20-57,345.30-11,937.60

Finding the Fourth Proportional to 38,230.20, 57,345.30 and 11,937.60

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Solution

The fourth proportional to 38,230.20, 57,345.30 and 11,937.60 is: 17,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,230.20 : 57,345.30 = 11,937.60 : x
  2. Step 2: Convert to fraction form
    38,230.20/57,345.30 = 11,937.60/x
  3. Step 3: Cross multiply
    38,230.20x = 57,345.30 × 11,937.60
  4. Step 4: Simplify right side
    38,230.20x = 684,565,253.28
  5. Step 5: Solve for x
    x = 684,565,253.28/38,230.20
  6. Step 6: Final answer
    x = 17,906.40

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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.