Home / 21,743.62-30,005.76-12,183.39

Finding the Fourth Proportional to 21,743.62, 30,005.76 and 12,183.39

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Solution

The fourth proportional to 21,743.62, 30,005.76 and 12,183.39 is: 16,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.62 : 30,005.76 = 12,183.39 : x
  2. Step 2: Convert to fraction form
    21,743.62/30,005.76 = 12,183.39/x
  3. Step 3: Cross multiply
    21,743.62x = 30,005.76 × 12,183.39
  4. Step 4: Simplify right side
    21,743.62x = 365,571,876.33
  5. Step 5: Solve for x
    x = 365,571,876.33/21,743.62
  6. Step 6: Final answer
    x = 16,812.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.