Home / 20,144.44-30,185.88-8,451.28

Finding the Fourth Proportional to 20,144.44, 30,185.88 and 8,451.28

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Solution

The fourth proportional to 20,144.44, 30,185.88 and 8,451.28 is: 12,664.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.44 : 30,185.88 = 8,451.28 : x
  2. Step 2: Convert to fraction form
    20,144.44/30,185.88 = 8,451.28/x
  3. Step 3: Cross multiply
    20,144.44x = 30,185.88 × 8,451.28
  4. Step 4: Simplify right side
    20,144.44x = 255,109,323.93
  5. Step 5: Solve for x
    x = 255,109,323.93/20,144.44
  6. Step 6: Final answer
    x = 12,664.01

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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.