Home / 21,262.89-31,894.30-7,224.37

Finding the Fourth Proportional to 21,262.89, 31,894.30 and 7,224.37

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Solution

The fourth proportional to 21,262.89, 31,894.30 and 7,224.37 is: 10,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.89 : 31,894.30 = 7,224.37 : x
  2. Step 2: Convert to fraction form
    21,262.89/31,894.30 = 7,224.37/x
  3. Step 3: Cross multiply
    21,262.89x = 31,894.30 × 7,224.37
  4. Step 4: Simplify right side
    21,262.89x = 230,416,187.97
  5. Step 5: Solve for x
    x = 230,416,187.97/21,262.89
  6. Step 6: Final answer
    x = 10,836.54

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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.