Home / 21,247.06-31,856.91-8,092.27

Finding the Fourth Proportional to 21,247.06, 31,856.91 and 8,092.27

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Solution

The fourth proportional to 21,247.06, 31,856.91 and 8,092.27 is: 12,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.06 : 31,856.91 = 8,092.27 : x
  2. Step 2: Convert to fraction form
    21,247.06/31,856.91 = 8,092.27/x
  3. Step 3: Cross multiply
    21,247.06x = 31,856.91 × 8,092.27
  4. Step 4: Simplify right side
    21,247.06x = 257,794,717.09
  5. Step 5: Solve for x
    x = 257,794,717.09/21,247.06
  6. Step 6: Final answer
    x = 12,133.19

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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.