Home / 20,149.16-27,806.53-11,197.04

Finding the Fourth Proportional to 20,149.16, 27,806.53 and 11,197.04

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Solution

The fourth proportional to 20,149.16, 27,806.53 and 11,197.04 is: 15,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.16 : 27,806.53 = 11,197.04 : x
  2. Step 2: Convert to fraction form
    20,149.16/27,806.53 = 11,197.04/x
  3. Step 3: Cross multiply
    20,149.16x = 27,806.53 × 11,197.04
  4. Step 4: Simplify right side
    20,149.16x = 311,350,661.65
  5. Step 5: Solve for x
    x = 311,350,661.65/20,149.16
  6. Step 6: Final answer
    x = 15,452.29

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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.