Home / 22,258.08-30,721.32-13,311.04

Finding the Fourth Proportional to 22,258.08, 30,721.32 and 13,311.04

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Solution

The fourth proportional to 22,258.08, 30,721.32 and 13,311.04 is: 18,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.08 : 30,721.32 = 13,311.04 : x
  2. Step 2: Convert to fraction form
    22,258.08/30,721.32 = 13,311.04/x
  3. Step 3: Cross multiply
    22,258.08x = 30,721.32 × 13,311.04
  4. Step 4: Simplify right side
    22,258.08x = 408,932,719.37
  5. Step 5: Solve for x
    x = 408,932,719.37/22,258.08
  6. Step 6: Final answer
    x = 18,372.33

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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.