Home / 16,481.90-24,720.32-5,388.64

Finding the Fourth Proportional to 16,481.90, 24,720.32 and 5,388.64

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Solution

The fourth proportional to 16,481.90, 24,720.32 and 5,388.64 is: 8,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,481.90 : 24,720.32 = 5,388.64 : x
  2. Step 2: Convert to fraction form
    16,481.90/24,720.32 = 5,388.64/x
  3. Step 3: Cross multiply
    16,481.90x = 24,720.32 × 5,388.64
  4. Step 4: Simplify right side
    16,481.90x = 133,208,905.16
  5. Step 5: Solve for x
    x = 133,208,905.16/16,481.90
  6. Step 6: Final answer
    x = 8,082.13

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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.