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Finding the Fourth Proportional to 22,279, 30,745.02 and 13,326.88

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Solution

The fourth proportional to 22,279, 30,745.02 and 13,326.88 is: 18,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279 : 30,745.02 = 13,326.88 : x
  2. Step 2: Convert to fraction form
    22,279/30,745.02 = 13,326.88/x
  3. Step 3: Cross multiply
    22,279x = 30,745.02 × 13,326.88
  4. Step 4: Simplify right side
    22,279x = 409,735,192.14
  5. Step 5: Solve for x
    x = 409,735,192.14/22,279
  6. Step 6: Final answer
    x = 18,391.09

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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.