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Finding the Fourth Proportional to 28,292, 39,046.56 and 17,114.08

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Solution

The fourth proportional to 28,292, 39,046.56 and 17,114.08 is: 23,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292 : 39,046.56 = 17,114.08 : x
  2. Step 2: Convert to fraction form
    28,292/39,046.56 = 17,114.08/x
  3. Step 3: Cross multiply
    28,292x = 39,046.56 × 17,114.08
  4. Step 4: Simplify right side
    28,292x = 668,245,951.56
  5. Step 5: Solve for x
    x = 668,245,951.56/28,292
  6. Step 6: Final answer
    x = 23,619.61

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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.