Home / 21,709.62-29,949.75-16,664.94

Finding the Fourth Proportional to 21,709.62, 29,949.75 and 16,664.94

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Solution

The fourth proportional to 21,709.62, 29,949.75 and 16,664.94 is: 22,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.62 : 29,949.75 = 16,664.94 : x
  2. Step 2: Convert to fraction form
    21,709.62/29,949.75 = 16,664.94/x
  3. Step 3: Cross multiply
    21,709.62x = 29,949.75 × 16,664.94
  4. Step 4: Simplify right side
    21,709.62x = 499,110,786.77
  5. Step 5: Solve for x
    x = 499,110,786.77/21,709.62
  6. Step 6: Final answer
    x = 22,990.31

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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.