Home / 22,399.20-30,910.92-12,328.37

Finding the Fourth Proportional to 22,399.20, 30,910.92 and 12,328.37

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Solution

The fourth proportional to 22,399.20, 30,910.92 and 12,328.37 is: 17,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,399.20 : 30,910.92 = 12,328.37 : x
  2. Step 2: Convert to fraction form
    22,399.20/30,910.92 = 12,328.37/x
  3. Step 3: Cross multiply
    22,399.20x = 30,910.92 × 12,328.37
  4. Step 4: Simplify right side
    22,399.20x = 381,081,258.80
  5. Step 5: Solve for x
    x = 381,081,258.80/22,399.20
  6. Step 6: Final answer
    x = 17,013.16

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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.