Home / 20,144.57-30,186.07-8,451.41

Finding the Fourth Proportional to 20,144.57, 30,186.07 and 8,451.41

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Solution

The fourth proportional to 20,144.57, 30,186.07 and 8,451.41 is: 12,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.57 : 30,186.07 = 8,451.41 : x
  2. Step 2: Convert to fraction form
    20,144.57/30,186.07 = 8,451.41/x
  3. Step 3: Cross multiply
    20,144.57x = 30,186.07 × 8,451.41
  4. Step 4: Simplify right side
    20,144.57x = 255,114,681.80
  5. Step 5: Solve for x
    x = 255,114,681.80/20,144.57
  6. Step 6: Final answer
    x = 12,664.19

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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.