Home / 20,150.92-27,806.10-11,196.40

Finding the Fourth Proportional to 20,150.92, 27,806.10 and 11,196.40

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Solution

The fourth proportional to 20,150.92, 27,806.10 and 11,196.40 is: 15,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.92 : 27,806.10 = 11,196.40 : x
  2. Step 2: Convert to fraction form
    20,150.92/27,806.10 = 11,196.40/x
  3. Step 3: Cross multiply
    20,150.92x = 27,806.10 × 11,196.40
  4. Step 4: Simplify right side
    20,150.92x = 311,328,218.04
  5. Step 5: Solve for x
    x = 311,328,218.04/20,150.92
  6. Step 6: Final answer
    x = 15,449.83

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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.