Home / 20,022.38-27,629.52-11,069.80

Finding the Fourth Proportional to 20,022.38, 27,629.52 and 11,069.80

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Solution

The fourth proportional to 20,022.38, 27,629.52 and 11,069.80 is: 15,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.38 : 27,629.52 = 11,069.80 : x
  2. Step 2: Convert to fraction form
    20,022.38/27,629.52 = 11,069.80/x
  3. Step 3: Cross multiply
    20,022.38x = 27,629.52 × 11,069.80
  4. Step 4: Simplify right side
    20,022.38x = 305,853,253.52
  5. Step 5: Solve for x
    x = 305,853,253.52/20,022.38
  6. Step 6: Final answer
    x = 15,275.57

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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.