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Finding the Fourth Proportional to 22,307.80, 33,439.20 and 8,258.80

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Solution

The fourth proportional to 22,307.80, 33,439.20 and 8,258.80 is: 12,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.80 : 33,439.20 = 8,258.80 : x
  2. Step 2: Convert to fraction form
    22,307.80/33,439.20 = 8,258.80/x
  3. Step 3: Cross multiply
    22,307.80x = 33,439.20 × 8,258.80
  4. Step 4: Simplify right side
    22,307.80x = 276,167,664.96
  5. Step 5: Solve for x
    x = 276,167,664.96/22,307.80
  6. Step 6: Final answer
    x = 12,379.87

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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.