Home / 20,150.22-27,806.36-11,197.65

Finding the Fourth Proportional to 20,150.22, 27,806.36 and 11,197.65

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Solution

The fourth proportional to 20,150.22, 27,806.36 and 11,197.65 is: 15,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.22 : 27,806.36 = 11,197.65 : x
  2. Step 2: Convert to fraction form
    20,150.22/27,806.36 = 11,197.65/x
  3. Step 3: Cross multiply
    20,150.22x = 27,806.36 × 11,197.65
  4. Step 4: Simplify right side
    20,150.22x = 311,365,831.07
  5. Step 5: Solve for x
    x = 311,365,831.07/20,150.22
  6. Step 6: Final answer
    x = 15,452.23

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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.