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Finding the Fourth Proportional to 19,994.36, 29,958.71 and 6,839.55

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Solution

The fourth proportional to 19,994.36, 29,958.71 and 6,839.55 is: 10,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.36 : 29,958.71 = 6,839.55 : x
  2. Step 2: Convert to fraction form
    19,994.36/29,958.71 = 6,839.55/x
  3. Step 3: Cross multiply
    19,994.36x = 29,958.71 × 6,839.55
  4. Step 4: Simplify right side
    19,994.36x = 204,904,060.78
  5. Step 5: Solve for x
    x = 204,904,060.78/19,994.36
  6. Step 6: Final answer
    x = 10,248.10

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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.