Home / 21,192.62-29,251.09-12,245.30

Finding the Fourth Proportional to 21,192.62, 29,251.09 and 12,245.30

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Solution

The fourth proportional to 21,192.62, 29,251.09 and 12,245.30 is: 16,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.62 : 29,251.09 = 12,245.30 : x
  2. Step 2: Convert to fraction form
    21,192.62/29,251.09 = 12,245.30/x
  3. Step 3: Cross multiply
    21,192.62x = 29,251.09 × 12,245.30
  4. Step 4: Simplify right side
    21,192.62x = 358,188,372.38
  5. Step 5: Solve for x
    x = 358,188,372.38/21,192.62
  6. Step 6: Final answer
    x = 16,901.56

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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.