Home / 20,224.19-27,910.33-11,271.75

Finding the Fourth Proportional to 20,224.19, 27,910.33 and 11,271.75

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Solution

The fourth proportional to 20,224.19, 27,910.33 and 11,271.75 is: 15,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.19 : 27,910.33 = 11,271.75 : x
  2. Step 2: Convert to fraction form
    20,224.19/27,910.33 = 11,271.75/x
  3. Step 3: Cross multiply
    20,224.19x = 27,910.33 × 11,271.75
  4. Step 4: Simplify right side
    20,224.19x = 314,598,380.93
  5. Step 5: Solve for x
    x = 314,598,380.93/20,224.19
  6. Step 6: Final answer
    x = 15,555.55

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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.