Home / 21,310.12-31,958.26-10,063.72

Finding the Fourth Proportional to 21,310.12, 31,958.26 and 10,063.72

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Solution

The fourth proportional to 21,310.12, 31,958.26 and 10,063.72 is: 15,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.12 : 31,958.26 = 10,063.72 : x
  2. Step 2: Convert to fraction form
    21,310.12/31,958.26 = 10,063.72/x
  3. Step 3: Cross multiply
    21,310.12x = 31,958.26 × 10,063.72
  4. Step 4: Simplify right side
    21,310.12x = 321,618,815.35
  5. Step 5: Solve for x
    x = 321,618,815.35/21,310.12
  6. Step 6: Final answer
    x = 15,092.31

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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.