Home / 21,822.91-32,748.72-11,969.11

Finding the Fourth Proportional to 21,822.91, 32,748.72 and 11,969.11

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Solution

The fourth proportional to 21,822.91, 32,748.72 and 11,969.11 is: 17,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.91 : 32,748.72 = 11,969.11 : x
  2. Step 2: Convert to fraction form
    21,822.91/32,748.72 = 11,969.11/x
  3. Step 3: Cross multiply
    21,822.91x = 32,748.72 × 11,969.11
  4. Step 4: Simplify right side
    21,822.91x = 391,972,808.45
  5. Step 5: Solve for x
    x = 391,972,808.45/21,822.91
  6. Step 6: Final answer
    x = 17,961.53

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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.