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Finding the Fourth Proportional to 22,161.80, 33,239 and 7,372.28

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Solution

The fourth proportional to 22,161.80, 33,239 and 7,372.28 is: 11,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.80 : 33,239 = 7,372.28 : x
  2. Step 2: Convert to fraction form
    22,161.80/33,239 = 7,372.28/x
  3. Step 3: Cross multiply
    22,161.80x = 33,239 × 7,372.28
  4. Step 4: Simplify right side
    22,161.80x = 245,047,214.92
  5. Step 5: Solve for x
    x = 245,047,214.92/22,161.80
  6. Step 6: Final answer
    x = 11,057.19

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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.