Home / 19,997.82-27,604.86-13,190.76

Finding the Fourth Proportional to 19,997.82, 27,604.86 and 13,190.76

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Solution

The fourth proportional to 19,997.82, 27,604.86 and 13,190.76 is: 18,208.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.82 : 27,604.86 = 13,190.76 : x
  2. Step 2: Convert to fraction form
    19,997.82/27,604.86 = 13,190.76/x
  3. Step 3: Cross multiply
    19,997.82x = 27,604.86 × 13,190.76
  4. Step 4: Simplify right side
    19,997.82x = 364,129,083.09
  5. Step 5: Solve for x
    x = 364,129,083.09/19,997.82
  6. Step 6: Final answer
    x = 18,208.44

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Double scale
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Similar ratio
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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.