Home / 33,231.12-49,836.80-12,449.76

Finding the Fourth Proportional to 33,231.12, 49,836.80 and 12,449.76

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Solution

The fourth proportional to 33,231.12, 49,836.80 and 12,449.76 is: 18,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,231.12 : 49,836.80 = 12,449.76 : x
  2. Step 2: Convert to fraction form
    33,231.12/49,836.80 = 12,449.76/x
  3. Step 3: Cross multiply
    33,231.12x = 49,836.80 × 12,449.76
  4. Step 4: Simplify right side
    33,231.12x = 620,456,199.17
  5. Step 5: Solve for x
    x = 620,456,199.17/33,231.12
  6. Step 6: Final answer
    x = 18,670.94

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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.