Home / 22,121.52-33,104.31-13,805.44

Finding the Fourth Proportional to 22,121.52, 33,104.31 and 13,805.44

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Solution

The fourth proportional to 22,121.52, 33,104.31 and 13,805.44 is: 20,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.52 : 33,104.31 = 13,805.44 : x
  2. Step 2: Convert to fraction form
    22,121.52/33,104.31 = 13,805.44/x
  3. Step 3: Cross multiply
    22,121.52x = 33,104.31 × 13,805.44
  4. Step 4: Simplify right side
    22,121.52x = 457,019,565.45
  5. Step 5: Solve for x
    x = 457,019,565.45/22,121.52
  6. Step 6: Final answer
    x = 20,659.50

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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.