Home / 26,821.87-40,203.64-11,221.27

Finding the Fourth Proportional to 26,821.87, 40,203.64 and 11,221.27

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Solution

The fourth proportional to 26,821.87, 40,203.64 and 11,221.27 is: 16,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,821.87 : 40,203.64 = 11,221.27 : x
  2. Step 2: Convert to fraction form
    26,821.87/40,203.64 = 11,221.27/x
  3. Step 3: Cross multiply
    26,821.87x = 40,203.64 × 11,221.27
  4. Step 4: Simplify right side
    26,821.87x = 451,135,899.42
  5. Step 5: Solve for x
    x = 451,135,899.42/26,821.87
  6. Step 6: Final answer
    x = 16,819.70

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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.