Home / 20,022.78-27,629-11,069.04

Finding the Fourth Proportional to 20,022.78, 27,629 and 11,069.04

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Solution

The fourth proportional to 20,022.78, 27,629 and 11,069.04 is: 15,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.78 : 27,629 = 11,069.04 : x
  2. Step 2: Convert to fraction form
    20,022.78/27,629 = 11,069.04/x
  3. Step 3: Cross multiply
    20,022.78x = 27,629 × 11,069.04
  4. Step 4: Simplify right side
    20,022.78x = 305,826,506.16
  5. Step 5: Solve for x
    x = 305,826,506.16/20,022.78
  6. Step 6: Final answer
    x = 15,273.93

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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.