Home / 19,958.45-29,928.97-5,723.78

Finding the Fourth Proportional to 19,958.45, 29,928.97 and 5,723.78

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Solution

The fourth proportional to 19,958.45, 29,928.97 and 5,723.78 is: 8,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.45 : 29,928.97 = 5,723.78 : x
  2. Step 2: Convert to fraction form
    19,958.45/29,928.97 = 5,723.78/x
  3. Step 3: Cross multiply
    19,958.45x = 29,928.97 × 5,723.78
  4. Step 4: Simplify right side
    19,958.45x = 171,306,839.91
  5. Step 5: Solve for x
    x = 171,306,839.91/19,958.45
  6. Step 6: Final answer
    x = 8,583.18

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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.