Home / 20,233.33-27,912.07-13,520.60

Finding the Fourth Proportional to 20,233.33, 27,912.07 and 13,520.60

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Solution

The fourth proportional to 20,233.33, 27,912.07 and 13,520.60 is: 18,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.33 : 27,912.07 = 13,520.60 : x
  2. Step 2: Convert to fraction form
    20,233.33/27,912.07 = 13,520.60/x
  3. Step 3: Cross multiply
    20,233.33x = 27,912.07 × 13,520.60
  4. Step 4: Simplify right side
    20,233.33x = 377,388,034.63
  5. Step 5: Solve for x
    x = 377,388,034.63/20,233.33
  6. Step 6: Final answer
    x = 18,651.80

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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.