Home / 21,676.92-29,927.04-13,725.96

Finding the Fourth Proportional to 21,676.92, 29,927.04 and 13,725.96

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Solution

The fourth proportional to 21,676.92, 29,927.04 and 13,725.96 is: 18,949.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.92 : 29,927.04 = 13,725.96 : x
  2. Step 2: Convert to fraction form
    21,676.92/29,927.04 = 13,725.96/x
  3. Step 3: Cross multiply
    21,676.92x = 29,927.04 × 13,725.96
  4. Step 4: Simplify right side
    21,676.92x = 410,777,353.96
  5. Step 5: Solve for x
    x = 410,777,353.96/21,676.92
  6. Step 6: Final answer
    x = 18,949.99

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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.