Home / 20,408.22-30,562.56-12,063.30

Finding the Fourth Proportional to 20,408.22, 30,562.56 and 12,063.30

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Solution

The fourth proportional to 20,408.22, 30,562.56 and 12,063.30 is: 18,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.22 : 30,562.56 = 12,063.30 : x
  2. Step 2: Convert to fraction form
    20,408.22/30,562.56 = 12,063.30/x
  3. Step 3: Cross multiply
    20,408.22x = 30,562.56 × 12,063.30
  4. Step 4: Simplify right side
    20,408.22x = 368,685,330.05
  5. Step 5: Solve for x
    x = 368,685,330.05/20,408.22
  6. Step 6: Final answer
    x = 18,065.53

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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.