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Finding the Fourth Proportional to 22,308.80, 33,440.70 and 8,259.80

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Solution

The fourth proportional to 22,308.80, 33,440.70 and 8,259.80 is: 12,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.80 : 33,440.70 = 8,259.80 : x
  2. Step 2: Convert to fraction form
    22,308.80/33,440.70 = 8,259.80/x
  3. Step 3: Cross multiply
    22,308.80x = 33,440.70 × 8,259.80
  4. Step 4: Simplify right side
    22,308.80x = 276,213,493.86
  5. Step 5: Solve for x
    x = 276,213,493.86/22,308.80
  6. Step 6: Final answer
    x = 12,381.37

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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.