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Finding the Fourth Proportional to 33,765.64, 50,638.70 and 12,984.20

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Solution

The fourth proportional to 33,765.64, 50,638.70 and 12,984.20 is: 19,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,765.64 : 50,638.70 = 12,984.20 : x
  2. Step 2: Convert to fraction form
    33,765.64/50,638.70 = 12,984.20/x
  3. Step 3: Cross multiply
    33,765.64x = 50,638.70 × 12,984.20
  4. Step 4: Simplify right side
    33,765.64x = 657,503,008.54
  5. Step 5: Solve for x
    x = 657,503,008.54/33,765.64
  6. Step 6: Final answer
    x = 19,472.55

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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.