Home / 20,132.22-27,781.08-11,179.26

Finding the Fourth Proportional to 20,132.22, 27,781.08 and 11,179.26

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Solution

The fourth proportional to 20,132.22, 27,781.08 and 11,179.26 is: 15,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.22 : 27,781.08 = 11,179.26 : x
  2. Step 2: Convert to fraction form
    20,132.22/27,781.08 = 11,179.26/x
  3. Step 3: Cross multiply
    20,132.22x = 27,781.08 × 11,179.26
  4. Step 4: Simplify right side
    20,132.22x = 310,571,916.40
  5. Step 5: Solve for x
    x = 310,571,916.40/20,132.22
  6. Step 6: Final answer
    x = 15,426.61

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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.