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Finding the Fourth Proportional to 22,169.70, 33,254.55 and 21,209.85

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Solution

The fourth proportional to 22,169.70, 33,254.55 and 21,209.85 is: 31,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,169.70 : 33,254.55 = 21,209.85 : x
  2. Step 2: Convert to fraction form
    22,169.70/33,254.55 = 21,209.85/x
  3. Step 3: Cross multiply
    22,169.70x = 33,254.55 × 21,209.85
  4. Step 4: Simplify right side
    22,169.70x = 705,324,017.32
  5. Step 5: Solve for x
    x = 705,324,017.32/22,169.70
  6. Step 6: Final answer
    x = 31,814.78

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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.