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Finding the Fourth Proportional to 22,118.70, 33,133.59 and 10,991.70

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Solution

The fourth proportional to 22,118.70, 33,133.59 and 10,991.70 is: 16,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.70 : 33,133.59 = 10,991.70 : x
  2. Step 2: Convert to fraction form
    22,118.70/33,133.59 = 10,991.70/x
  3. Step 3: Cross multiply
    22,118.70x = 33,133.59 × 10,991.70
  4. Step 4: Simplify right side
    22,118.70x = 364,194,481.20
  5. Step 5: Solve for x
    x = 364,194,481.20/22,118.70
  6. Step 6: Final answer
    x = 16,465.46

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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.