Home / 19,896.33-29,844.51-5,105.25

Finding the Fourth Proportional to 19,896.33, 29,844.51 and 5,105.25

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Solution

The fourth proportional to 19,896.33, 29,844.51 and 5,105.25 is: 7,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,896.33 : 29,844.51 = 5,105.25 : x
  2. Step 2: Convert to fraction form
    19,896.33/29,844.51 = 5,105.25/x
  3. Step 3: Cross multiply
    19,896.33x = 29,844.51 × 5,105.25
  4. Step 4: Simplify right side
    19,896.33x = 152,363,684.68
  5. Step 5: Solve for x
    x = 152,363,684.68/19,896.33
  6. Step 6: Final answer
    x = 7,657.88

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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.