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Finding the Fourth Proportional to 22,200.30, 33,300.45 and 21,179.70

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Solution

The fourth proportional to 22,200.30, 33,300.45 and 21,179.70 is: 31,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.30 : 33,300.45 = 21,179.70 : x
  2. Step 2: Convert to fraction form
    22,200.30/33,300.45 = 21,179.70/x
  3. Step 3: Cross multiply
    22,200.30x = 33,300.45 × 21,179.70
  4. Step 4: Simplify right side
    22,200.30x = 705,293,540.87
  5. Step 5: Solve for x
    x = 705,293,540.87/22,200.30
  6. Step 6: Final answer
    x = 31,769.55

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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.