Home / 21,137.46-29,136.15-16,654.38

Finding the Fourth Proportional to 21,137.46, 29,136.15 and 16,654.38

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Solution

The fourth proportional to 21,137.46, 29,136.15 and 16,654.38 is: 22,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.46 : 29,136.15 = 16,654.38 : x
  2. Step 2: Convert to fraction form
    21,137.46/29,136.15 = 16,654.38/x
  3. Step 3: Cross multiply
    21,137.46x = 29,136.15 × 16,654.38
  4. Step 4: Simplify right side
    21,137.46x = 485,244,513.84
  5. Step 5: Solve for x
    x = 485,244,513.84/21,137.46
  6. Step 6: Final answer
    x = 22,956.61

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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.