Home / 20,149.56-27,806.67-11,196.90

Finding the Fourth Proportional to 20,149.56, 27,806.67 and 11,196.90

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Solution

The fourth proportional to 20,149.56, 27,806.67 and 11,196.90 is: 15,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.56 : 27,806.67 = 11,196.90 : x
  2. Step 2: Convert to fraction form
    20,149.56/27,806.67 = 11,196.90/x
  3. Step 3: Cross multiply
    20,149.56x = 27,806.67 × 11,196.90
  4. Step 4: Simplify right side
    20,149.56x = 311,348,503.32
  5. Step 5: Solve for x
    x = 311,348,503.32/20,149.56
  6. Step 6: Final answer
    x = 15,451.88

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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.