Home / 21,299.75-31,958.44-8,822.31

Finding the Fourth Proportional to 21,299.75, 31,958.44 and 8,822.31

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Solution

The fourth proportional to 21,299.75, 31,958.44 and 8,822.31 is: 13,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.75 : 31,958.44 = 8,822.31 : x
  2. Step 2: Convert to fraction form
    21,299.75/31,958.44 = 8,822.31/x
  3. Step 3: Cross multiply
    21,299.75x = 31,958.44 × 8,822.31
  4. Step 4: Simplify right side
    21,299.75x = 281,947,242.74
  5. Step 5: Solve for x
    x = 281,947,242.74/21,299.75
  6. Step 6: Final answer
    x = 13,237.11

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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.