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Finding the Fourth Proportional to 22,005.40, 33,016.20 and 8,859.10

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Solution

The fourth proportional to 22,005.40, 33,016.20 and 8,859.10 is: 13,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.40 : 33,016.20 = 8,859.10 : x
  2. Step 2: Convert to fraction form
    22,005.40/33,016.20 = 8,859.10/x
  3. Step 3: Cross multiply
    22,005.40x = 33,016.20 × 8,859.10
  4. Step 4: Simplify right side
    22,005.40x = 292,493,817.42
  5. Step 5: Solve for x
    x = 292,493,817.42/22,005.40
  6. Step 6: Final answer
    x = 13,291.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.