Home / 19,943.96-29,919.49-6,617.75

Finding the Fourth Proportional to 19,943.96, 29,919.49 and 6,617.75

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Solution

The fourth proportional to 19,943.96, 29,919.49 and 6,617.75 is: 9,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.96 : 29,919.49 = 6,617.75 : x
  2. Step 2: Convert to fraction form
    19,943.96/29,919.49 = 6,617.75/x
  3. Step 3: Cross multiply
    19,943.96x = 29,919.49 × 6,617.75
  4. Step 4: Simplify right side
    19,943.96x = 197,999,704.95
  5. Step 5: Solve for x
    x = 197,999,704.95/19,943.96
  6. Step 6: Final answer
    x = 9,927.81

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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.