Home / 21,480.04-32,181.94-8,972.54

Finding the Fourth Proportional to 21,480.04, 32,181.94 and 8,972.54

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Solution

The fourth proportional to 21,480.04, 32,181.94 and 8,972.54 is: 13,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.04 : 32,181.94 = 8,972.54 : x
  2. Step 2: Convert to fraction form
    21,480.04/32,181.94 = 8,972.54/x
  3. Step 3: Cross multiply
    21,480.04x = 32,181.94 × 8,972.54
  4. Step 4: Simplify right side
    21,480.04x = 288,753,714.92
  5. Step 5: Solve for x
    x = 288,753,714.92/21,480.04
  6. Step 6: Final answer
    x = 13,442.88

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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.