Home / 20,225.67-27,906.93-11,729.18

Finding the Fourth Proportional to 20,225.67, 27,906.93 and 11,729.18

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Solution

The fourth proportional to 20,225.67, 27,906.93 and 11,729.18 is: 16,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.67 : 27,906.93 = 11,729.18 : x
  2. Step 2: Convert to fraction form
    20,225.67/27,906.93 = 11,729.18/x
  3. Step 3: Cross multiply
    20,225.67x = 27,906.93 × 11,729.18
  4. Step 4: Simplify right side
    20,225.67x = 327,325,265.68
  5. Step 5: Solve for x
    x = 327,325,265.68/20,225.67
  6. Step 6: Final answer
    x = 16,183.66

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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.