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Finding the Fourth Proportional to 28,754.68, 39,679.32 and 16,177

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Solution

The fourth proportional to 28,754.68, 39,679.32 and 16,177 is: 22,323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.68 : 39,679.32 = 16,177 : x
  2. Step 2: Convert to fraction form
    28,754.68/39,679.32 = 16,177/x
  3. Step 3: Cross multiply
    28,754.68x = 39,679.32 × 16,177
  4. Step 4: Simplify right side
    28,754.68x = 641,892,359.64
  5. Step 5: Solve for x
    x = 641,892,359.64/28,754.68
  6. Step 6: Final answer
    x = 22,323.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.