Home / 22,201.23-30,640.91-13,249.11

Finding the Fourth Proportional to 22,201.23, 30,640.91 and 13,249.11

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Solution

The fourth proportional to 22,201.23, 30,640.91 and 13,249.11 is: 18,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.23 : 30,640.91 = 13,249.11 : x
  2. Step 2: Convert to fraction form
    22,201.23/30,640.91 = 13,249.11/x
  3. Step 3: Cross multiply
    22,201.23x = 30,640.91 × 13,249.11
  4. Step 4: Simplify right side
    22,201.23x = 405,964,720.84
  5. Step 5: Solve for x
    x = 405,964,720.84/22,201.23
  6. Step 6: Final answer
    x = 18,285.69

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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.