Home / 21,221.68-31,837.82-14,993.88

Finding the Fourth Proportional to 21,221.68, 31,837.82 and 14,993.88

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Solution

The fourth proportional to 21,221.68, 31,837.82 and 14,993.88 is: 22,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221.68 : 31,837.82 = 14,993.88 : x
  2. Step 2: Convert to fraction form
    21,221.68/31,837.82 = 14,993.88/x
  3. Step 3: Cross multiply
    21,221.68x = 31,837.82 × 14,993.88
  4. Step 4: Simplify right side
    21,221.68x = 477,372,452.54
  5. Step 5: Solve for x
    x = 477,372,452.54/21,221.68
  6. Step 6: Final answer
    x = 22,494.56

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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.