Home / 19,872.30-27,414.09-11,911.62

Finding the Fourth Proportional to 19,872.30, 27,414.09 and 11,911.62

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Solution

The fourth proportional to 19,872.30, 27,414.09 and 11,911.62 is: 16,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.30 : 27,414.09 = 11,911.62 : x
  2. Step 2: Convert to fraction form
    19,872.30/27,414.09 = 11,911.62/x
  3. Step 3: Cross multiply
    19,872.30x = 27,414.09 × 11,911.62
  4. Step 4: Simplify right side
    19,872.30x = 326,546,222.73
  5. Step 5: Solve for x
    x = 326,546,222.73/19,872.30
  6. Step 6: Final answer
    x = 16,432.23

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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.