Home / 47,919.60-71,891.40-18,339.76

Finding the Fourth Proportional to 47,919.60, 71,891.40 and 18,339.76

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Solution

The fourth proportional to 47,919.60, 71,891.40 and 18,339.76 is: 27,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,919.60 : 71,891.40 = 18,339.76 : x
  2. Step 2: Convert to fraction form
    47,919.60/71,891.40 = 18,339.76/x
  3. Step 3: Cross multiply
    47,919.60x = 71,891.40 × 18,339.76
  4. Step 4: Simplify right side
    47,919.60x = 1,318,471,022.06
  5. Step 5: Solve for x
    x = 1,318,471,022.06/47,919.60
  6. Step 6: Final answer
    x = 27,514.23

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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.