Home / 22,855.84-34,212.66-20,917.96

Finding the Fourth Proportional to 22,855.84, 34,212.66 and 20,917.96

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Solution

The fourth proportional to 22,855.84, 34,212.66 and 20,917.96 is: 31,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,855.84 : 34,212.66 = 20,917.96 : x
  2. Step 2: Convert to fraction form
    22,855.84/34,212.66 = 20,917.96/x
  3. Step 3: Cross multiply
    22,855.84x = 34,212.66 × 20,917.96
  4. Step 4: Simplify right side
    22,855.84x = 715,659,053.37
  5. Step 5: Solve for x
    x = 715,659,053.37/22,855.84
  6. Step 6: Final answer
    x = 31,311.87

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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.