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Finding the Fourth Proportional to 18,578.67, 27,820.41 and 10,249.44

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Solution

The fourth proportional to 18,578.67, 27,820.41 and 10,249.44 is: 15,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.67 : 27,820.41 = 10,249.44 : x
  2. Step 2: Convert to fraction form
    18,578.67/27,820.41 = 10,249.44/x
  3. Step 3: Cross multiply
    18,578.67x = 27,820.41 × 10,249.44
  4. Step 4: Simplify right side
    18,578.67x = 285,143,537.96
  5. Step 5: Solve for x
    x = 285,143,537.96/18,578.67
  6. Step 6: Final answer
    x = 15,347.90

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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.