Home / 21,540.05-32,310.09-6,750.14

Finding the Fourth Proportional to 21,540.05, 32,310.09 and 6,750.14

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Solution

The fourth proportional to 21,540.05, 32,310.09 and 6,750.14 is: 10,125.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.05 : 32,310.09 = 6,750.14 : x
  2. Step 2: Convert to fraction form
    21,540.05/32,310.09 = 6,750.14/x
  3. Step 3: Cross multiply
    21,540.05x = 32,310.09 × 6,750.14
  4. Step 4: Simplify right side
    21,540.05x = 218,097,469.36
  5. Step 5: Solve for x
    x = 218,097,469.36/21,540.05
  6. Step 6: Final answer
    x = 10,125.21

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1.5x scale

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.