Home / 19,982.85-29,963.24-12,571.45

Finding the Fourth Proportional to 19,982.85, 29,963.24 and 12,571.45

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Solution

The fourth proportional to 19,982.85, 29,963.24 and 12,571.45 is: 18,850.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.85 : 29,963.24 = 12,571.45 : x
  2. Step 2: Convert to fraction form
    19,982.85/29,963.24 = 12,571.45/x
  3. Step 3: Cross multiply
    19,982.85x = 29,963.24 × 12,571.45
  4. Step 4: Simplify right side
    19,982.85x = 376,681,373.50
  5. Step 5: Solve for x
    x = 376,681,373.50/19,982.85
  6. Step 6: Final answer
    x = 18,850.23

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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.