Home / 20,116.43-27,761.30-11,618.39

Finding the Fourth Proportional to 20,116.43, 27,761.30 and 11,618.39

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Solution

The fourth proportional to 20,116.43, 27,761.30 and 11,618.39 is: 16,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.43 : 27,761.30 = 11,618.39 : x
  2. Step 2: Convert to fraction form
    20,116.43/27,761.30 = 11,618.39/x
  3. Step 3: Cross multiply
    20,116.43x = 27,761.30 × 11,618.39
  4. Step 4: Simplify right side
    20,116.43x = 322,541,511.86
  5. Step 5: Solve for x
    x = 322,541,511.86/20,116.43
  6. Step 6: Final answer
    x = 16,033.74

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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.