Home / 20,079.23-27,708.88-11,581.37

Finding the Fourth Proportional to 20,079.23, 27,708.88 and 11,581.37

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Solution

The fourth proportional to 20,079.23, 27,708.88 and 11,581.37 is: 15,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.23 : 27,708.88 = 11,581.37 : x
  2. Step 2: Convert to fraction form
    20,079.23/27,708.88 = 11,581.37/x
  3. Step 3: Cross multiply
    20,079.23x = 27,708.88 × 11,581.37
  4. Step 4: Simplify right side
    20,079.23x = 320,906,791.57
  5. Step 5: Solve for x
    x = 320,906,791.57/20,079.23
  6. Step 6: Final answer
    x = 15,982.03

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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.