Home / 22,160.28-30,581.50-13,212.97

Finding the Fourth Proportional to 22,160.28, 30,581.50 and 13,212.97

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Solution

The fourth proportional to 22,160.28, 30,581.50 and 13,212.97 is: 18,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.28 : 30,581.50 = 13,212.97 : x
  2. Step 2: Convert to fraction form
    22,160.28/30,581.50 = 13,212.97/x
  3. Step 3: Cross multiply
    22,160.28x = 30,581.50 × 13,212.97
  4. Step 4: Simplify right side
    22,160.28x = 404,072,529.36
  5. Step 5: Solve for x
    x = 404,072,529.36/22,160.28
  6. Step 6: Final answer
    x = 18,234.09

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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.