Home / 20,172.52-27,844.14-13,099.96

Finding the Fourth Proportional to 20,172.52, 27,844.14 and 13,099.96

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Solution

The fourth proportional to 20,172.52, 27,844.14 and 13,099.96 is: 18,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.52 : 27,844.14 = 13,099.96 : x
  2. Step 2: Convert to fraction form
    20,172.52/27,844.14 = 13,099.96/x
  3. Step 3: Cross multiply
    20,172.52x = 27,844.14 × 13,099.96
  4. Step 4: Simplify right side
    20,172.52x = 364,757,120.23
  5. Step 5: Solve for x
    x = 364,757,120.23/20,172.52
  6. Step 6: Final answer
    x = 18,081.88

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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.