Home / 28,776.14-43,170.09-12,136.18

Finding the Fourth Proportional to 28,776.14, 43,170.09 and 12,136.18

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Solution

The fourth proportional to 28,776.14, 43,170.09 and 12,136.18 is: 18,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.14 : 43,170.09 = 12,136.18 : x
  2. Step 2: Convert to fraction form
    28,776.14/43,170.09 = 12,136.18/x
  3. Step 3: Cross multiply
    28,776.14x = 43,170.09 × 12,136.18
  4. Step 4: Simplify right side
    28,776.14x = 523,919,982.86
  5. Step 5: Solve for x
    x = 523,919,982.86/28,776.14
  6. Step 6: Final answer
    x = 18,206.75

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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.