Home / 20,015.88-27,634.36-13,894.68

Finding the Fourth Proportional to 20,015.88, 27,634.36 and 13,894.68

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Solution

The fourth proportional to 20,015.88, 27,634.36 and 13,894.68 is: 19,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.88 : 27,634.36 = 13,894.68 : x
  2. Step 2: Convert to fraction form
    20,015.88/27,634.36 = 13,894.68/x
  3. Step 3: Cross multiply
    20,015.88x = 27,634.36 × 13,894.68
  4. Step 4: Simplify right side
    20,015.88x = 383,970,589.20
  5. Step 5: Solve for x
    x = 383,970,589.20/20,015.88
  6. Step 6: Final answer
    x = 19,183.30

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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.