Home / 31,622.22-43,640.37-18,195.53

Finding the Fourth Proportional to 31,622.22, 43,640.37 and 18,195.53

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Solution

The fourth proportional to 31,622.22, 43,640.37 and 18,195.53 is: 25,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.22 : 43,640.37 = 18,195.53 : x
  2. Step 2: Convert to fraction form
    31,622.22/43,640.37 = 18,195.53/x
  3. Step 3: Cross multiply
    31,622.22x = 43,640.37 × 18,195.53
  4. Step 4: Simplify right side
    31,622.22x = 794,059,443.34
  5. Step 5: Solve for x
    x = 794,059,443.34/31,622.22
  6. Step 6: Final answer
    x = 25,110.81

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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.