Home / 20,260.13-27,959.35-11,766.97

Finding the Fourth Proportional to 20,260.13, 27,959.35 and 11,766.97

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Solution

The fourth proportional to 20,260.13, 27,959.35 and 11,766.97 is: 16,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.13 : 27,959.35 = 11,766.97 : x
  2. Step 2: Convert to fraction form
    20,260.13/27,959.35 = 11,766.97/x
  3. Step 3: Cross multiply
    20,260.13x = 27,959.35 × 11,766.97
  4. Step 4: Simplify right side
    20,260.13x = 328,996,702.99
  5. Step 5: Solve for x
    x = 328,996,702.99/20,260.13
  6. Step 6: Final answer
    x = 16,238.63

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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.