Home / 43,842.72-65,789.16-18,540.24

Finding the Fourth Proportional to 43,842.72, 65,789.16 and 18,540.24

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Solution

The fourth proportional to 43,842.72, 65,789.16 and 18,540.24 is: 27,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,842.72 : 65,789.16 = 18,540.24 : x
  2. Step 2: Convert to fraction form
    43,842.72/65,789.16 = 18,540.24/x
  3. Step 3: Cross multiply
    43,842.72x = 65,789.16 × 18,540.24
  4. Step 4: Simplify right side
    43,842.72x = 1,219,746,815.80
  5. Step 5: Solve for x
    x = 1,219,746,815.80/43,842.72
  6. Step 6: Final answer
    x = 27,820.97

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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.