Home / 20,249.10-30,389.22-13,227.21

Finding the Fourth Proportional to 20,249.10, 30,389.22 and 13,227.21

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Solution

The fourth proportional to 20,249.10, 30,389.22 and 13,227.21 is: 19,850.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.10 : 30,389.22 = 13,227.21 : x
  2. Step 2: Convert to fraction form
    20,249.10/30,389.22 = 13,227.21/x
  3. Step 3: Cross multiply
    20,249.10x = 30,389.22 × 13,227.21
  4. Step 4: Simplify right side
    20,249.10x = 401,964,594.68
  5. Step 5: Solve for x
    x = 401,964,594.68/20,249.10
  6. Step 6: Final answer
    x = 19,850.99

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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.