Home / 20,441.12-30,656.82-5,649.72

Finding the Fourth Proportional to 20,441.12, 30,656.82 and 5,649.72

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Solution

The fourth proportional to 20,441.12, 30,656.82 and 5,649.72 is: 8,473.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.12 : 30,656.82 = 5,649.72 : x
  2. Step 2: Convert to fraction form
    20,441.12/30,656.82 = 5,649.72/x
  3. Step 3: Cross multiply
    20,441.12x = 30,656.82 × 5,649.72
  4. Step 4: Simplify right side
    20,441.12x = 173,202,449.09
  5. Step 5: Solve for x
    x = 173,202,449.09/20,441.12
  6. Step 6: Final answer
    x = 8,473.24

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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.