Home / 21,046.70-31,613.79-16,694.57

Finding the Fourth Proportional to 21,046.70, 31,613.79 and 16,694.57

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Solution

The fourth proportional to 21,046.70, 31,613.79 and 16,694.57 is: 25,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.70 : 31,613.79 = 16,694.57 : x
  2. Step 2: Convert to fraction form
    21,046.70/31,613.79 = 16,694.57/x
  3. Step 3: Cross multiply
    21,046.70x = 31,613.79 × 16,694.57
  4. Step 4: Simplify right side
    21,046.70x = 527,778,630.12
  5. Step 5: Solve for x
    x = 527,778,630.12/21,046.70
  6. Step 6: Final answer
    x = 25,076.55

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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.