Home / 28,821.82-43,222.30-12,183.14

Finding the Fourth Proportional to 28,821.82, 43,222.30 and 12,183.14

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Solution

The fourth proportional to 28,821.82, 43,222.30 and 12,183.14 is: 18,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.82 : 43,222.30 = 12,183.14 : x
  2. Step 2: Convert to fraction form
    28,821.82/43,222.30 = 12,183.14/x
  3. Step 3: Cross multiply
    28,821.82x = 43,222.30 × 12,183.14
  4. Step 4: Simplify right side
    28,821.82x = 526,583,332.02
  5. Step 5: Solve for x
    x = 526,583,332.02/28,821.82
  6. Step 6: Final answer
    x = 18,270.30

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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.