Home / 38,109.48-57,180.62-18,402.78

Finding the Fourth Proportional to 38,109.48, 57,180.62 and 18,402.78

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Solution

The fourth proportional to 38,109.48, 57,180.62 and 18,402.78 is: 27,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.48 : 57,180.62 = 18,402.78 : x
  2. Step 2: Convert to fraction form
    38,109.48/57,180.62 = 18,402.78/x
  3. Step 3: Cross multiply
    38,109.48x = 57,180.62 × 18,402.78
  4. Step 4: Simplify right side
    38,109.48x = 1,052,282,370.12
  5. Step 5: Solve for x
    x = 1,052,282,370.12/38,109.48
  6. Step 6: Final answer
    x = 27,612.09

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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.