Home / 21,694.48-29,936.52-12,621.52

Finding the Fourth Proportional to 21,694.48, 29,936.52 and 12,621.52

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Solution

The fourth proportional to 21,694.48, 29,936.52 and 12,621.52 is: 17,416.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.48 : 29,936.52 = 12,621.52 : x
  2. Step 2: Convert to fraction form
    21,694.48/29,936.52 = 12,621.52/x
  3. Step 3: Cross multiply
    21,694.48x = 29,936.52 × 12,621.52
  4. Step 4: Simplify right side
    21,694.48x = 377,844,385.91
  5. Step 5: Solve for x
    x = 377,844,385.91/21,694.48
  6. Step 6: Final answer
    x = 17,416.61

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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.