Home / 21,310.34-31,964.36-6,519.26

Finding the Fourth Proportional to 21,310.34, 31,964.36 and 6,519.26

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Solution

The fourth proportional to 21,310.34, 31,964.36 and 6,519.26 is: 9,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.34 : 31,964.36 = 6,519.26 : x
  2. Step 2: Convert to fraction form
    21,310.34/31,964.36 = 6,519.26/x
  3. Step 3: Cross multiply
    21,310.34x = 31,964.36 × 6,519.26
  4. Step 4: Simplify right side
    21,310.34x = 208,383,973.57
  5. Step 5: Solve for x
    x = 208,383,973.57/21,310.34
  6. Step 6: Final answer
    x = 9,778.54

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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.