Home / 38,509.62-57,766.05-18,805.56

Finding the Fourth Proportional to 38,509.62, 57,766.05 and 18,805.56

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Solution

The fourth proportional to 38,509.62, 57,766.05 and 18,805.56 is: 28,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.62 : 57,766.05 = 18,805.56 : x
  2. Step 2: Convert to fraction form
    38,509.62/57,766.05 = 18,805.56/x
  3. Step 3: Cross multiply
    38,509.62x = 57,766.05 × 18,805.56
  4. Step 4: Simplify right side
    38,509.62x = 1,086,322,919.24
  5. Step 5: Solve for x
    x = 1,086,322,919.24/38,509.62
  6. Step 6: Final answer
    x = 28,209.13

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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.