Home / 21,822.28-32,747.77-11,968.48

Finding the Fourth Proportional to 21,822.28, 32,747.77 and 11,968.48

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Solution

The fourth proportional to 21,822.28, 32,747.77 and 11,968.48 is: 17,960.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.28 : 32,747.77 = 11,968.48 : x
  2. Step 2: Convert to fraction form
    21,822.28/32,747.77 = 11,968.48/x
  3. Step 3: Cross multiply
    21,822.28x = 32,747.77 × 11,968.48
  4. Step 4: Simplify right side
    21,822.28x = 391,940,978.34
  5. Step 5: Solve for x
    x = 391,940,978.34/21,822.28
  6. Step 6: Final answer
    x = 17,960.59

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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.