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Finding the Fourth Proportional to 33,618.40, 50,427.60 and 21,808.60

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Solution

The fourth proportional to 33,618.40, 50,427.60 and 21,808.60 is: 32,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,618.40 : 50,427.60 = 21,808.60 : x
  2. Step 2: Convert to fraction form
    33,618.40/50,427.60 = 21,808.60/x
  3. Step 3: Cross multiply
    33,618.40x = 50,427.60 × 21,808.60
  4. Step 4: Simplify right side
    33,618.40x = 1,099,755,357.36
  5. Step 5: Solve for x
    x = 1,099,755,357.36/33,618.40
  6. Step 6: Final answer
    x = 32,712.90

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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.