Home / 22,720.23-31,350.62-13,286.97

Finding the Fourth Proportional to 22,720.23, 31,350.62 and 13,286.97

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Solution

The fourth proportional to 22,720.23, 31,350.62 and 13,286.97 is: 18,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.23 : 31,350.62 = 13,286.97 : x
  2. Step 2: Convert to fraction form
    22,720.23/31,350.62 = 13,286.97/x
  3. Step 3: Cross multiply
    22,720.23x = 31,350.62 × 13,286.97
  4. Step 4: Simplify right side
    22,720.23x = 416,554,680.99
  5. Step 5: Solve for x
    x = 416,554,680.99/22,720.23
  6. Step 6: Final answer
    x = 18,334.09

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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.