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Finding the Fourth Proportional to 22,013.91, 33,019.68 and 7,220.88

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Solution

The fourth proportional to 22,013.91, 33,019.68 and 7,220.88 is: 10,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,013.91 : 33,019.68 = 7,220.88 : x
  2. Step 2: Convert to fraction form
    22,013.91/33,019.68 = 7,220.88/x
  3. Step 3: Cross multiply
    22,013.91x = 33,019.68 × 7,220.88
  4. Step 4: Simplify right side
    22,013.91x = 238,431,146.92
  5. Step 5: Solve for x
    x = 238,431,146.92/22,013.91
  6. Step 6: Final answer
    x = 10,830.93

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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.