Home / 19,401.80-29,137.90-16,982.60

Finding the Fourth Proportional to 19,401.80, 29,137.90 and 16,982.60

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Solution

The fourth proportional to 19,401.80, 29,137.90 and 16,982.60 is: 25,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.80 : 29,137.90 = 16,982.60 : x
  2. Step 2: Convert to fraction form
    19,401.80/29,137.90 = 16,982.60/x
  3. Step 3: Cross multiply
    19,401.80x = 29,137.90 × 16,982.60
  4. Step 4: Simplify right side
    19,401.80x = 494,837,300.54
  5. Step 5: Solve for x
    x = 494,837,300.54/19,401.80
  6. Step 6: Final answer
    x = 25,504.71

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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.