Home / 21,286.24-31,933.14-7,245.56

Finding the Fourth Proportional to 21,286.24, 31,933.14 and 7,245.56

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Solution

The fourth proportional to 21,286.24, 31,933.14 and 7,245.56 is: 10,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286.24 : 31,933.14 = 7,245.56 : x
  2. Step 2: Convert to fraction form
    21,286.24/31,933.14 = 7,245.56/x
  3. Step 3: Cross multiply
    21,286.24x = 31,933.14 × 7,245.56
  4. Step 4: Simplify right side
    21,286.24x = 231,373,481.86
  5. Step 5: Solve for x
    x = 231,373,481.86/21,286.24
  6. Step 6: Final answer
    x = 10,869.63

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1.5x scale

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.