Home / 39,380.15-54,345.96-22,385.11

Finding the Fourth Proportional to 39,380.15, 54,345.96 and 22,385.11

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Solution

The fourth proportional to 39,380.15, 54,345.96 and 22,385.11 is: 30,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,380.15 : 54,345.96 = 22,385.11 : x
  2. Step 2: Convert to fraction form
    39,380.15/54,345.96 = 22,385.11/x
  3. Step 3: Cross multiply
    39,380.15x = 54,345.96 × 22,385.11
  4. Step 4: Simplify right side
    39,380.15x = 1,216,540,020.93
  5. Step 5: Solve for x
    x = 1,216,540,020.93/39,380.15
  6. Step 6: Final answer
    x = 30,892.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.