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Finding the Fourth Proportional to 22,017, 30,383.46 and 12,081

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Solution

The fourth proportional to 22,017, 30,383.46 and 12,081 is: 16,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017 : 30,383.46 = 12,081 : x
  2. Step 2: Convert to fraction form
    22,017/30,383.46 = 12,081/x
  3. Step 3: Cross multiply
    22,017x = 30,383.46 × 12,081
  4. Step 4: Simplify right side
    22,017x = 367,062,580.26
  5. Step 5: Solve for x
    x = 367,062,580.26/22,017
  6. Step 6: Final answer
    x = 16,671.78

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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.