Home / 27,015.48-40,489.13-13,691.83

Finding the Fourth Proportional to 27,015.48, 40,489.13 and 13,691.83

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Solution

The fourth proportional to 27,015.48, 40,489.13 and 13,691.83 is: 20,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.48 : 40,489.13 = 13,691.83 : x
  2. Step 2: Convert to fraction form
    27,015.48/40,489.13 = 13,691.83/x
  3. Step 3: Cross multiply
    27,015.48x = 40,489.13 × 13,691.83
  4. Step 4: Simplify right side
    27,015.48x = 554,370,116.59
  5. Step 5: Solve for x
    x = 554,370,116.59/27,015.48
  6. Step 6: Final answer
    x = 20,520.46

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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.