Home / 21,481.11-32,213.91-7,437.30

Finding the Fourth Proportional to 21,481.11, 32,213.91 and 7,437.30

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Solution

The fourth proportional to 21,481.11, 32,213.91 and 7,437.30 is: 11,153.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.11 : 32,213.91 = 7,437.30 : x
  2. Step 2: Convert to fraction form
    21,481.11/32,213.91 = 7,437.30/x
  3. Step 3: Cross multiply
    21,481.11x = 32,213.91 × 7,437.30
  4. Step 4: Simplify right side
    21,481.11x = 239,584,512.84
  5. Step 5: Solve for x
    x = 239,584,512.84/21,481.11
  6. Step 6: Final answer
    x = 11,153.27

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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.