Home / 19,431.43-29,139.09-6,099.97

Finding the Fourth Proportional to 19,431.43, 29,139.09 and 6,099.97

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Solution

The fourth proportional to 19,431.43, 29,139.09 and 6,099.97 is: 9,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.43 : 29,139.09 = 6,099.97 : x
  2. Step 2: Convert to fraction form
    19,431.43/29,139.09 = 6,099.97/x
  3. Step 3: Cross multiply
    19,431.43x = 29,139.09 × 6,099.97
  4. Step 4: Simplify right side
    19,431.43x = 177,747,574.83
  5. Step 5: Solve for x
    x = 177,747,574.83/19,431.43
  6. Step 6: Final answer
    x = 9,147.43

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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.