Home / 20,212.19-27,893.11-11,714.90

Finding the Fourth Proportional to 20,212.19, 27,893.11 and 11,714.90

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Solution

The fourth proportional to 20,212.19, 27,893.11 and 11,714.90 is: 16,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.19 : 27,893.11 = 11,714.90 : x
  2. Step 2: Convert to fraction form
    20,212.19/27,893.11 = 11,714.90/x
  3. Step 3: Cross multiply
    20,212.19x = 27,893.11 × 11,714.90
  4. Step 4: Simplify right side
    20,212.19x = 326,764,974.12
  5. Step 5: Solve for x
    x = 326,764,974.12/20,212.19
  6. Step 6: Final answer
    x = 16,166.73

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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.