Home / 18,998.27-28,505.60-10,231.43

Finding the Fourth Proportional to 18,998.27, 28,505.60 and 10,231.43

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Solution

The fourth proportional to 18,998.27, 28,505.60 and 10,231.43 is: 15,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.27 : 28,505.60 = 10,231.43 : x
  2. Step 2: Convert to fraction form
    18,998.27/28,505.60 = 10,231.43/x
  3. Step 3: Cross multiply
    18,998.27x = 28,505.60 × 10,231.43
  4. Step 4: Simplify right side
    18,998.27x = 291,652,857.32
  5. Step 5: Solve for x
    x = 291,652,857.32/18,998.27
  6. Step 6: Final answer
    x = 15,351.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.