Home / 43,815.98-65,695.89-18,508.61

Finding the Fourth Proportional to 43,815.98, 65,695.89 and 18,508.61

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Solution

The fourth proportional to 43,815.98, 65,695.89 and 18,508.61 is: 27,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,815.98 : 65,695.89 = 18,508.61 : x
  2. Step 2: Convert to fraction form
    43,815.98/65,695.89 = 18,508.61/x
  3. Step 3: Cross multiply
    43,815.98x = 65,695.89 × 18,508.61
  4. Step 4: Simplify right side
    43,815.98x = 1,215,939,514.07
  5. Step 5: Solve for x
    x = 1,215,939,514.07/43,815.98
  6. Step 6: Final answer
    x = 27,751.05

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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.