Home / 21,654.62-29,883.14-12,223.58

Finding the Fourth Proportional to 21,654.62, 29,883.14 and 12,223.58

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Solution

The fourth proportional to 21,654.62, 29,883.14 and 12,223.58 is: 16,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.62 : 29,883.14 = 12,223.58 : x
  2. Step 2: Convert to fraction form
    21,654.62/29,883.14 = 12,223.58/x
  3. Step 3: Cross multiply
    21,654.62x = 29,883.14 × 12,223.58
  4. Step 4: Simplify right side
    21,654.62x = 365,278,952.44
  5. Step 5: Solve for x
    x = 365,278,952.44/21,654.62
  6. Step 6: Final answer
    x = 16,868.41

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1.5x scale

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.