Home / 21,540.90-32,311.29-6,749.88

Finding the Fourth Proportional to 21,540.90, 32,311.29 and 6,749.88

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Solution

The fourth proportional to 21,540.90, 32,311.29 and 6,749.88 is: 10,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.90 : 32,311.29 = 6,749.88 : x
  2. Step 2: Convert to fraction form
    21,540.90/32,311.29 = 6,749.88/x
  3. Step 3: Cross multiply
    21,540.90x = 32,311.29 × 6,749.88
  4. Step 4: Simplify right side
    21,540.90x = 218,097,330.15
  5. Step 5: Solve for x
    x = 218,097,330.15/21,540.90
  6. Step 6: Final answer
    x = 10,124.80

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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.