Home / 20,441.38-30,645.77-18,801.22

Finding the Fourth Proportional to 20,441.38, 30,645.77 and 18,801.22

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Solution

The fourth proportional to 20,441.38, 30,645.77 and 18,801.22 is: 28,186.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.38 : 30,645.77 = 18,801.22 : x
  2. Step 2: Convert to fraction form
    20,441.38/30,645.77 = 18,801.22/x
  3. Step 3: Cross multiply
    20,441.38x = 30,645.77 × 18,801.22
  4. Step 4: Simplify right side
    20,441.38x = 576,177,863.84
  5. Step 5: Solve for x
    x = 576,177,863.84/20,441.38
  6. Step 6: Final answer
    x = 28,186.84

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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.