Home / 21,262.44-31,872.98-11,906.94

Finding the Fourth Proportional to 21,262.44, 31,872.98 and 11,906.94

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Solution

The fourth proportional to 21,262.44, 31,872.98 and 11,906.94 is: 17,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.44 : 31,872.98 = 11,906.94 : x
  2. Step 2: Convert to fraction form
    21,262.44/31,872.98 = 11,906.94/x
  3. Step 3: Cross multiply
    21,262.44x = 31,872.98 × 11,906.94
  4. Step 4: Simplify right side
    21,262.44x = 379,509,660.48
  5. Step 5: Solve for x
    x = 379,509,660.48/21,262.44
  6. Step 6: Final answer
    x = 17,848.83

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1.5x scale

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.