Home / 21,227.03-31,865.13-11,385.53

Finding the Fourth Proportional to 21,227.03, 31,865.13 and 11,385.53

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Solution

The fourth proportional to 21,227.03, 31,865.13 and 11,385.53 is: 17,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.03 : 31,865.13 = 11,385.53 : x
  2. Step 2: Convert to fraction form
    21,227.03/31,865.13 = 11,385.53/x
  3. Step 3: Cross multiply
    21,227.03x = 31,865.13 × 11,385.53
  4. Step 4: Simplify right side
    21,227.03x = 362,801,234.24
  5. Step 5: Solve for x
    x = 362,801,234.24/21,227.03
  6. Step 6: Final answer
    x = 17,091.48

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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.