Home / 20,201.89-27,881.06-11,591.23

Finding the Fourth Proportional to 20,201.89, 27,881.06 and 11,591.23

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Solution

The fourth proportional to 20,201.89, 27,881.06 and 11,591.23 is: 15,997.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.89 : 27,881.06 = 11,591.23 : x
  2. Step 2: Convert to fraction form
    20,201.89/27,881.06 = 11,591.23/x
  3. Step 3: Cross multiply
    20,201.89x = 27,881.06 × 11,591.23
  4. Step 4: Simplify right side
    20,201.89x = 323,175,581.74
  5. Step 5: Solve for x
    x = 323,175,581.74/20,201.89
  6. Step 6: Final answer
    x = 15,997.29

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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.