Home / 22,121.77-33,104.69-13,805.69

Finding the Fourth Proportional to 22,121.77, 33,104.69 and 13,805.69

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Solution

The fourth proportional to 22,121.77, 33,104.69 and 13,805.69 is: 20,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.77 : 33,104.69 = 13,805.69 : x
  2. Step 2: Convert to fraction form
    22,121.77/33,104.69 = 13,805.69/x
  3. Step 3: Cross multiply
    22,121.77x = 33,104.69 × 13,805.69
  4. Step 4: Simplify right side
    22,121.77x = 457,033,018.66
  5. Step 5: Solve for x
    x = 457,033,018.66/22,121.77
  6. Step 6: Final answer
    x = 20,659.88

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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.