Home / 21,755.20-32,636.89-6,960.15

Finding the Fourth Proportional to 21,755.20, 32,636.89 and 6,960.15

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Solution

The fourth proportional to 21,755.20, 32,636.89 and 6,960.15 is: 10,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.20 : 32,636.89 = 6,960.15 : x
  2. Step 2: Convert to fraction form
    21,755.20/32,636.89 = 6,960.15/x
  3. Step 3: Cross multiply
    21,755.20x = 32,636.89 × 6,960.15
  4. Step 4: Simplify right side
    21,755.20x = 227,157,649.93
  5. Step 5: Solve for x
    x = 227,157,649.93/21,755.20
  6. Step 6: Final answer
    x = 10,441.53

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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.