Home / 20,223.45-27,907.90-11,727.09

Finding the Fourth Proportional to 20,223.45, 27,907.90 and 11,727.09

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Solution

The fourth proportional to 20,223.45, 27,907.90 and 11,727.09 is: 16,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.45 : 27,907.90 = 11,727.09 : x
  2. Step 2: Convert to fraction form
    20,223.45/27,907.90 = 11,727.09/x
  3. Step 3: Cross multiply
    20,223.45x = 27,907.90 × 11,727.09
  4. Step 4: Simplify right side
    20,223.45x = 327,278,425.69
  5. Step 5: Solve for x
    x = 327,278,425.69/20,223.45
  6. Step 6: Final answer
    x = 16,183.12

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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.