Home / 20,149.43-27,805.76-11,196.63

Finding the Fourth Proportional to 20,149.43, 27,805.76 and 11,196.63

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Solution

The fourth proportional to 20,149.43, 27,805.76 and 11,196.63 is: 15,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.43 : 27,805.76 = 11,196.63 : x
  2. Step 2: Convert to fraction form
    20,149.43/27,805.76 = 11,196.63/x
  3. Step 3: Cross multiply
    20,149.43x = 27,805.76 × 11,196.63
  4. Step 4: Simplify right side
    20,149.43x = 311,330,855.57
  5. Step 5: Solve for x
    x = 311,330,855.57/20,149.43
  6. Step 6: Final answer
    x = 15,451.10

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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.