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Finding the Fourth Proportional to 28,105.70, 41,860.31 and 27,969.92

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Solution

The fourth proportional to 28,105.70, 41,860.31 and 27,969.92 is: 41,658.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.70 : 41,860.31 = 27,969.92 : x
  2. Step 2: Convert to fraction form
    28,105.70/41,860.31 = 27,969.92/x
  3. Step 3: Cross multiply
    28,105.70x = 41,860.31 × 27,969.92
  4. Step 4: Simplify right side
    28,105.70x = 1,170,829,172.72
  5. Step 5: Solve for x
    x = 1,170,829,172.72/28,105.70
  6. Step 6: Final answer
    x = 41,658.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.