Home / 27,149.82-40,731.30-13,789.95

Finding the Fourth Proportional to 27,149.82, 40,731.30 and 13,789.95

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Solution

The fourth proportional to 27,149.82, 40,731.30 and 13,789.95 is: 20,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.82 : 40,731.30 = 13,789.95 : x
  2. Step 2: Convert to fraction form
    27,149.82/40,731.30 = 13,789.95/x
  3. Step 3: Cross multiply
    27,149.82x = 40,731.30 × 13,789.95
  4. Step 4: Simplify right side
    27,149.82x = 561,682,590.44
  5. Step 5: Solve for x
    x = 561,682,590.44/27,149.82
  6. Step 6: Final answer
    x = 20,688.26

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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.