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Finding the Fourth Proportional to 33,335.80, 50,003.70 and 20,869.90

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Solution

The fourth proportional to 33,335.80, 50,003.70 and 20,869.90 is: 31,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,335.80 : 50,003.70 = 20,869.90 : x
  2. Step 2: Convert to fraction form
    33,335.80/50,003.70 = 20,869.90/x
  3. Step 3: Cross multiply
    33,335.80x = 50,003.70 × 20,869.90
  4. Step 4: Simplify right side
    33,335.80x = 1,043,572,218.63
  5. Step 5: Solve for x
    x = 1,043,572,218.63/33,335.80
  6. Step 6: Final answer
    x = 31,304.85

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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.