Home / 20,252.88-27,954.11-12,085.28

Finding the Fourth Proportional to 20,252.88, 27,954.11 and 12,085.28

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Solution

The fourth proportional to 20,252.88, 27,954.11 and 12,085.28 is: 16,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.88 : 27,954.11 = 12,085.28 : x
  2. Step 2: Convert to fraction form
    20,252.88/27,954.11 = 12,085.28/x
  3. Step 3: Cross multiply
    20,252.88x = 27,954.11 × 12,085.28
  4. Step 4: Simplify right side
    20,252.88x = 337,833,046.30
  5. Step 5: Solve for x
    x = 337,833,046.30/20,252.88
  6. Step 6: Final answer
    x = 16,680.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.