Home / 20,218.01-27,900.96-11,725.17

Finding the Fourth Proportional to 20,218.01, 27,900.96 and 11,725.17

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Solution

The fourth proportional to 20,218.01, 27,900.96 and 11,725.17 is: 16,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.01 : 27,900.96 = 11,725.17 : x
  2. Step 2: Convert to fraction form
    20,218.01/27,900.96 = 11,725.17/x
  3. Step 3: Cross multiply
    20,218.01x = 27,900.96 × 11,725.17
  4. Step 4: Simplify right side
    20,218.01x = 327,143,388.97
  5. Step 5: Solve for x
    x = 327,143,388.97/20,218.01
  6. Step 6: Final answer
    x = 16,180.79

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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.