Home / 19,976.62-29,983.34-10,122.88

Finding the Fourth Proportional to 19,976.62, 29,983.34 and 10,122.88

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Solution

The fourth proportional to 19,976.62, 29,983.34 and 10,122.88 is: 15,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.62 : 29,983.34 = 10,122.88 : x
  2. Step 2: Convert to fraction form
    19,976.62/29,983.34 = 10,122.88/x
  3. Step 3: Cross multiply
    19,976.62x = 29,983.34 × 10,122.88
  4. Step 4: Simplify right side
    19,976.62x = 303,517,702.20
  5. Step 5: Solve for x
    x = 303,517,702.20/19,976.62
  6. Step 6: Final answer
    x = 15,193.65

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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.