Home / 26,511.66-39,680.94-19,489.82

Finding the Fourth Proportional to 26,511.66, 39,680.94 and 19,489.82

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Solution

The fourth proportional to 26,511.66, 39,680.94 and 19,489.82 is: 29,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,511.66 : 39,680.94 = 19,489.82 : x
  2. Step 2: Convert to fraction form
    26,511.66/39,680.94 = 19,489.82/x
  3. Step 3: Cross multiply
    26,511.66x = 39,680.94 × 19,489.82
  4. Step 4: Simplify right side
    26,511.66x = 773,374,179.63
  5. Step 5: Solve for x
    x = 773,374,179.63/26,511.66
  6. Step 6: Final answer
    x = 29,171.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.