Home / 20,090.97-27,738.86-18,836.48

Finding the Fourth Proportional to 20,090.97, 27,738.86 and 18,836.48

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Solution

The fourth proportional to 20,090.97, 27,738.86 and 18,836.48 is: 26,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.97 : 27,738.86 = 18,836.48 : x
  2. Step 2: Convert to fraction form
    20,090.97/27,738.86 = 18,836.48/x
  3. Step 3: Cross multiply
    20,090.97x = 27,738.86 × 18,836.48
  4. Step 4: Simplify right side
    20,090.97x = 522,502,456.78
  5. Step 5: Solve for x
    x = 522,502,456.78/20,090.97
  6. Step 6: Final answer
    x = 26,006.83

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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.