Home / 20,997.96-28,982.94-14,294.79

Finding the Fourth Proportional to 20,997.96, 28,982.94 and 14,294.79

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Solution

The fourth proportional to 20,997.96, 28,982.94 and 14,294.79 is: 19,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.96 : 28,982.94 = 14,294.79 : x
  2. Step 2: Convert to fraction form
    20,997.96/28,982.94 = 14,294.79/x
  3. Step 3: Cross multiply
    20,997.96x = 28,982.94 × 14,294.79
  4. Step 4: Simplify right side
    20,997.96x = 414,305,040.88
  5. Step 5: Solve for x
    x = 414,305,040.88/20,997.96
  6. Step 6: Final answer
    x = 19,730.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.