Home / 20,244.97-27,938.16-11,170.64

Finding the Fourth Proportional to 20,244.97, 27,938.16 and 11,170.64

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Solution

The fourth proportional to 20,244.97, 27,938.16 and 11,170.64 is: 15,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.97 : 27,938.16 = 11,170.64 : x
  2. Step 2: Convert to fraction form
    20,244.97/27,938.16 = 11,170.64/x
  3. Step 3: Cross multiply
    20,244.97x = 27,938.16 × 11,170.64
  4. Step 4: Simplify right side
    20,244.97x = 312,087,127.62
  5. Step 5: Solve for x
    x = 312,087,127.62/20,244.97
  6. Step 6: Final answer
    x = 15,415.54

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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.