Home / 20,467.78-28,241.26-11,968.24

Finding the Fourth Proportional to 20,467.78, 28,241.26 and 11,968.24

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Solution

The fourth proportional to 20,467.78, 28,241.26 and 11,968.24 is: 16,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.78 : 28,241.26 = 11,968.24 : x
  2. Step 2: Convert to fraction form
    20,467.78/28,241.26 = 11,968.24/x
  3. Step 3: Cross multiply
    20,467.78x = 28,241.26 × 11,968.24
  4. Step 4: Simplify right side
    20,467.78x = 337,998,177.58
  5. Step 5: Solve for x
    x = 337,998,177.58/20,467.78
  6. Step 6: Final answer
    x = 16,513.67

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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.