Home / 22,121.78-33,169.05-10,862.80

Finding the Fourth Proportional to 22,121.78, 33,169.05 and 10,862.80

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Solution

The fourth proportional to 22,121.78, 33,169.05 and 10,862.80 is: 16,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.78 : 33,169.05 = 10,862.80 : x
  2. Step 2: Convert to fraction form
    22,121.78/33,169.05 = 10,862.80/x
  3. Step 3: Cross multiply
    22,121.78x = 33,169.05 × 10,862.80
  4. Step 4: Simplify right side
    22,121.78x = 360,308,673.42
  5. Step 5: Solve for x
    x = 360,308,673.42/22,121.78
  6. Step 6: Final answer
    x = 16,287.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.