Home / 22,331.13-30,811.19-13,372.29

Finding the Fourth Proportional to 22,331.13, 30,811.19 and 13,372.29

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Solution

The fourth proportional to 22,331.13, 30,811.19 and 13,372.29 is: 18,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,331.13 : 30,811.19 = 13,372.29 : x
  2. Step 2: Convert to fraction form
    22,331.13/30,811.19 = 13,372.29/x
  3. Step 3: Cross multiply
    22,331.13x = 30,811.19 × 13,372.29
  4. Step 4: Simplify right side
    22,331.13x = 412,016,101.06
  5. Step 5: Solve for x
    x = 412,016,101.06/22,331.13
  6. Step 6: Final answer
    x = 18,450.30

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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.