Home / 27,109.13-40,671.25-11,321.61

Finding the Fourth Proportional to 27,109.13, 40,671.25 and 11,321.61

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Solution

The fourth proportional to 27,109.13, 40,671.25 and 11,321.61 is: 16,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,109.13 : 40,671.25 = 11,321.61 : x
  2. Step 2: Convert to fraction form
    27,109.13/40,671.25 = 11,321.61/x
  3. Step 3: Cross multiply
    27,109.13x = 40,671.25 × 11,321.61
  4. Step 4: Simplify right side
    27,109.13x = 460,463,974.10
  5. Step 5: Solve for x
    x = 460,463,974.10/27,109.13
  6. Step 6: Final answer
    x = 16,985.57

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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.