Home / 20,043.24-27,654.68-12,961.14

Finding the Fourth Proportional to 20,043.24, 27,654.68 and 12,961.14

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Solution

The fourth proportional to 20,043.24, 27,654.68 and 12,961.14 is: 17,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.24 : 27,654.68 = 12,961.14 : x
  2. Step 2: Convert to fraction form
    20,043.24/27,654.68 = 12,961.14/x
  3. Step 3: Cross multiply
    20,043.24x = 27,654.68 × 12,961.14
  4. Step 4: Simplify right side
    20,043.24x = 358,436,179.14
  5. Step 5: Solve for x
    x = 358,436,179.14/20,043.24
  6. Step 6: Final answer
    x = 17,883.15

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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.