Home / 21,540.06-32,310.06-6,750.12

Finding the Fourth Proportional to 21,540.06, 32,310.06 and 6,750.12

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Solution

The fourth proportional to 21,540.06, 32,310.06 and 6,750.12 is: 10,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.06 : 32,310.06 = 6,750.12 : x
  2. Step 2: Convert to fraction form
    21,540.06/32,310.06 = 6,750.12/x
  3. Step 3: Cross multiply
    21,540.06x = 32,310.06 × 6,750.12
  4. Step 4: Simplify right side
    21,540.06x = 218,096,782.21
  5. Step 5: Solve for x
    x = 218,096,782.21/21,540.06
  6. Step 6: Final answer
    x = 10,125.17

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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.