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Finding the Fourth Proportional to 22,169.79, 30,594.92 and 13,218.03

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Solution

The fourth proportional to 22,169.79, 30,594.92 and 13,218.03 is: 18,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,169.79 : 30,594.92 = 13,218.03 : x
  2. Step 2: Convert to fraction form
    22,169.79/30,594.92 = 13,218.03/x
  3. Step 3: Cross multiply
    22,169.79x = 30,594.92 × 13,218.03
  4. Step 4: Simplify right side
    22,169.79x = 404,404,504.32
  5. Step 5: Solve for x
    x = 404,404,504.32/22,169.79
  6. Step 6: Final answer
    x = 18,241.24

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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.