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Finding the Fourth Proportional to 33,480, 50,220 and 8,856

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Solution

The fourth proportional to 33,480, 50,220 and 8,856 is: 13,284

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,480 : 50,220 = 8,856 : x
  2. Step 2: Convert to fraction form
    33,480/50,220 = 8,856/x
  3. Step 3: Cross multiply
    33,480x = 50,220 × 8,856
  4. Step 4: Simplify right side
    33,480x = 444,748,320
  5. Step 5: Solve for x
    x = 444,748,320/33,480
  6. Step 6: Final answer
    x = 13,284

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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.