Home / 18,922.24-28,321.44-13,923.28

Finding the Fourth Proportional to 18,922.24, 28,321.44 and 13,923.28

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Solution

The fourth proportional to 18,922.24, 28,321.44 and 13,923.28 is: 20,839.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.24 : 28,321.44 = 13,923.28 : x
  2. Step 2: Convert to fraction form
    18,922.24/28,321.44 = 13,923.28/x
  3. Step 3: Cross multiply
    18,922.24x = 28,321.44 × 13,923.28
  4. Step 4: Simplify right side
    18,922.24x = 394,327,339.12
  5. Step 5: Solve for x
    x = 394,327,339.12/18,922.24
  6. Step 6: Final answer
    x = 20,839.36

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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.