Home / 21,942.20-32,839.58-18,251.84

Finding the Fourth Proportional to 21,942.20, 32,839.58 and 18,251.84

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Solution

The fourth proportional to 21,942.20, 32,839.58 and 18,251.84 is: 27,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.20 : 32,839.58 = 18,251.84 : x
  2. Step 2: Convert to fraction form
    21,942.20/32,839.58 = 18,251.84/x
  3. Step 3: Cross multiply
    21,942.20x = 32,839.58 × 18,251.84
  4. Step 4: Simplify right side
    21,942.20x = 599,382,759.83
  5. Step 5: Solve for x
    x = 599,382,759.83/21,942.20
  6. Step 6: Final answer
    x = 27,316.44

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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.