Home / 20,141.11-27,794.64-12,181.02

Finding the Fourth Proportional to 20,141.11, 27,794.64 and 12,181.02

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Solution

The fourth proportional to 20,141.11, 27,794.64 and 12,181.02 is: 16,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.11 : 27,794.64 = 12,181.02 : x
  2. Step 2: Convert to fraction form
    20,141.11/27,794.64 = 12,181.02/x
  3. Step 3: Cross multiply
    20,141.11x = 27,794.64 × 12,181.02
  4. Step 4: Simplify right side
    20,141.11x = 338,567,065.73
  5. Step 5: Solve for x
    x = 338,567,065.73/20,141.11
  6. Step 6: Final answer
    x = 16,809.75

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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.