Home / 22,311.21-30,788.45-12,239.44

Finding the Fourth Proportional to 22,311.21, 30,788.45 and 12,239.44

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Solution

The fourth proportional to 22,311.21, 30,788.45 and 12,239.44 is: 16,889.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,311.21 : 30,788.45 = 12,239.44 : x
  2. Step 2: Convert to fraction form
    22,311.21/30,788.45 = 12,239.44/x
  3. Step 3: Cross multiply
    22,311.21x = 30,788.45 × 12,239.44
  4. Step 4: Simplify right side
    22,311.21x = 376,833,324.95
  5. Step 5: Solve for x
    x = 376,833,324.95/22,311.21
  6. Step 6: Final answer
    x = 16,889.86

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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.