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Finding the Fourth Proportional to 33,876, 46,748.88 and 20,628

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Solution

The fourth proportional to 33,876, 46,748.88 and 20,628 is: 28,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,876 : 46,748.88 = 20,628 : x
  2. Step 2: Convert to fraction form
    33,876/46,748.88 = 20,628/x
  3. Step 3: Cross multiply
    33,876x = 46,748.88 × 20,628
  4. Step 4: Simplify right side
    33,876x = 964,335,896.64
  5. Step 5: Solve for x
    x = 964,335,896.64/33,876
  6. Step 6: Final answer
    x = 28,466.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.