Home / 22,121.35-33,169.78-8,780.83

Finding the Fourth Proportional to 22,121.35, 33,169.78 and 8,780.83

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Solution

The fourth proportional to 22,121.35, 33,169.78 and 8,780.83 is: 13,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.35 : 33,169.78 = 8,780.83 : x
  2. Step 2: Convert to fraction form
    22,121.35/33,169.78 = 8,780.83/x
  3. Step 3: Cross multiply
    22,121.35x = 33,169.78 × 8,780.83
  4. Step 4: Simplify right side
    22,121.35x = 291,258,199.32
  5. Step 5: Solve for x
    x = 291,258,199.32/22,121.35
  6. Step 6: Final answer
    x = 13,166.38

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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.