Home / 19,422.27-29,136.24-7,734.78

Finding the Fourth Proportional to 19,422.27, 29,136.24 and 7,734.78

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Solution

The fourth proportional to 19,422.27, 29,136.24 and 7,734.78 is: 11,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.27 : 29,136.24 = 7,734.78 : x
  2. Step 2: Convert to fraction form
    19,422.27/29,136.24 = 7,734.78/x
  3. Step 3: Cross multiply
    19,422.27x = 29,136.24 × 7,734.78
  4. Step 4: Simplify right side
    19,422.27x = 225,362,406.43
  5. Step 5: Solve for x
    x = 225,362,406.43/19,422.27
  6. Step 6: Final answer
    x = 11,603.30

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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.