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Finding the Fourth Proportional to 28,003.68, 41,997.02 and 13,197.69

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Solution

The fourth proportional to 28,003.68, 41,997.02 and 13,197.69 is: 19,792.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.68 : 41,997.02 = 13,197.69 : x
  2. Step 2: Convert to fraction form
    28,003.68/41,997.02 = 13,197.69/x
  3. Step 3: Cross multiply
    28,003.68x = 41,997.02 × 13,197.69
  4. Step 4: Simplify right side
    28,003.68x = 554,263,584.90
  5. Step 5: Solve for x
    x = 554,263,584.90/28,003.68
  6. Step 6: Final answer
    x = 19,792.53

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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.