Home / 38,452.30-57,678.45-12,165.10

Finding the Fourth Proportional to 38,452.30, 57,678.45 and 12,165.10

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Solution

The fourth proportional to 38,452.30, 57,678.45 and 12,165.10 is: 18,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,452.30 : 57,678.45 = 12,165.10 : x
  2. Step 2: Convert to fraction form
    38,452.30/57,678.45 = 12,165.10/x
  3. Step 3: Cross multiply
    38,452.30x = 57,678.45 × 12,165.10
  4. Step 4: Simplify right side
    38,452.30x = 701,664,112.10
  5. Step 5: Solve for x
    x = 701,664,112.10/38,452.30
  6. Step 6: Final answer
    x = 18,247.65

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Similar ratio
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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.