Home / 19,825.43-27,351.99-11,321.42

Finding the Fourth Proportional to 19,825.43, 27,351.99 and 11,321.42

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Solution

The fourth proportional to 19,825.43, 27,351.99 and 11,321.42 is: 15,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.43 : 27,351.99 = 11,321.42 : x
  2. Step 2: Convert to fraction form
    19,825.43/27,351.99 = 11,321.42/x
  3. Step 3: Cross multiply
    19,825.43x = 27,351.99 × 11,321.42
  4. Step 4: Simplify right side
    19,825.43x = 309,663,229.87
  5. Step 5: Solve for x
    x = 309,663,229.87/19,825.43
  6. Step 6: Final answer
    x = 15,619.50

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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.