Home / 38,379.12-57,565.08-12,081.84

Finding the Fourth Proportional to 38,379.12, 57,565.08 and 12,081.84

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Solution

The fourth proportional to 38,379.12, 57,565.08 and 12,081.84 is: 18,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.12 : 57,565.08 = 12,081.84 : x
  2. Step 2: Convert to fraction form
    38,379.12/57,565.08 = 12,081.84/x
  3. Step 3: Cross multiply
    38,379.12x = 57,565.08 × 12,081.84
  4. Step 4: Simplify right side
    38,379.12x = 695,492,086.15
  5. Step 5: Solve for x
    x = 695,492,086.15/38,379.12
  6. Step 6: Final answer
    x = 18,121.63

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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.