Home / 21,299.55-31,949.77-5,504.91

Finding the Fourth Proportional to 21,299.55, 31,949.77 and 5,504.91

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Solution

The fourth proportional to 21,299.55, 31,949.77 and 5,504.91 is: 8,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.55 : 31,949.77 = 5,504.91 : x
  2. Step 2: Convert to fraction form
    21,299.55/31,949.77 = 5,504.91/x
  3. Step 3: Cross multiply
    21,299.55x = 31,949.77 × 5,504.91
  4. Step 4: Simplify right side
    21,299.55x = 175,880,608.37
  5. Step 5: Solve for x
    x = 175,880,608.37/21,299.55
  6. Step 6: Final answer
    x = 8,257.48

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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.