Home / 20,643.44-30,962.24-6,605.12

Finding the Fourth Proportional to 20,643.44, 30,962.24 and 6,605.12

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Solution

The fourth proportional to 20,643.44, 30,962.24 and 6,605.12 is: 9,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643.44 : 30,962.24 = 6,605.12 : x
  2. Step 2: Convert to fraction form
    20,643.44/30,962.24 = 6,605.12/x
  3. Step 3: Cross multiply
    20,643.44x = 30,962.24 × 6,605.12
  4. Step 4: Simplify right side
    20,643.44x = 204,509,310.67
  5. Step 5: Solve for x
    x = 204,509,310.67/20,643.44
  6. Step 6: Final answer
    x = 9,906.75

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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.