Home / 20,733.82-31,138.23-19,064.90

Finding the Fourth Proportional to 20,733.82, 31,138.23 and 19,064.90

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Solution

The fourth proportional to 20,733.82, 31,138.23 and 19,064.90 is: 28,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.82 : 31,138.23 = 19,064.90 : x
  2. Step 2: Convert to fraction form
    20,733.82/31,138.23 = 19,064.90/x
  3. Step 3: Cross multiply
    20,733.82x = 31,138.23 × 19,064.90
  4. Step 4: Simplify right side
    20,733.82x = 593,647,219.35
  5. Step 5: Solve for x
    x = 593,647,219.35/20,733.82
  6. Step 6: Final answer
    x = 28,631.84

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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.