Home / 19,438.25-29,155.06-11,437.80

Finding the Fourth Proportional to 19,438.25, 29,155.06 and 11,437.80

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Solution

The fourth proportional to 19,438.25, 29,155.06 and 11,437.80 is: 17,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.25 : 29,155.06 = 11,437.80 : x
  2. Step 2: Convert to fraction form
    19,438.25/29,155.06 = 11,437.80/x
  3. Step 3: Cross multiply
    19,438.25x = 29,155.06 × 11,437.80
  4. Step 4: Simplify right side
    19,438.25x = 333,469,745.27
  5. Step 5: Solve for x
    x = 333,469,745.27/19,438.25
  6. Step 6: Final answer
    x = 17,155.34

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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.