Home / 19,943.82-29,906.64-7,454.70

Finding the Fourth Proportional to 19,943.82, 29,906.64 and 7,454.70

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Solution

The fourth proportional to 19,943.82, 29,906.64 and 7,454.70 is: 11,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.82 : 29,906.64 = 7,454.70 : x
  2. Step 2: Convert to fraction form
    19,943.82/29,906.64 = 7,454.70/x
  3. Step 3: Cross multiply
    19,943.82x = 29,906.64 × 7,454.70
  4. Step 4: Simplify right side
    19,943.82x = 222,945,029.21
  5. Step 5: Solve for x
    x = 222,945,029.21/19,943.82
  6. Step 6: Final answer
    x = 11,178.65

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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.