Home / 20,140.93-27,794.43-12,183.13

Finding the Fourth Proportional to 20,140.93, 27,794.43 and 12,183.13

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Solution

The fourth proportional to 20,140.93, 27,794.43 and 12,183.13 is: 16,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.93 : 27,794.43 = 12,183.13 : x
  2. Step 2: Convert to fraction form
    20,140.93/27,794.43 = 12,183.13/x
  3. Step 3: Cross multiply
    20,140.93x = 27,794.43 × 12,183.13
  4. Step 4: Simplify right side
    20,140.93x = 338,623,153.97
  5. Step 5: Solve for x
    x = 338,623,153.97/20,140.93
  6. Step 6: Final answer
    x = 16,812.69

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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.