Home / 21,540.64-32,310.97-6,749.56

Finding the Fourth Proportional to 21,540.64, 32,310.97 and 6,749.56

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Solution

The fourth proportional to 21,540.64, 32,310.97 and 6,749.56 is: 10,124.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.64 : 32,310.97 = 6,749.56 : x
  2. Step 2: Convert to fraction form
    21,540.64/32,310.97 = 6,749.56/x
  3. Step 3: Cross multiply
    21,540.64x = 32,310.97 × 6,749.56
  4. Step 4: Simplify right side
    21,540.64x = 218,084,635.37
  5. Step 5: Solve for x
    x = 218,084,635.37/21,540.64
  6. Step 6: Final answer
    x = 10,124.33

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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.