Home / 31,276.44-43,162.20-17,129.16

Finding the Fourth Proportional to 31,276.44, 43,162.20 and 17,129.16

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Solution

The fourth proportional to 31,276.44, 43,162.20 and 17,129.16 is: 23,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,276.44 : 43,162.20 = 17,129.16 : x
  2. Step 2: Convert to fraction form
    31,276.44/43,162.20 = 17,129.16/x
  3. Step 3: Cross multiply
    31,276.44x = 43,162.20 × 17,129.16
  4. Step 4: Simplify right side
    31,276.44x = 739,332,229.75
  5. Step 5: Solve for x
    x = 739,332,229.75/31,276.44
  6. Step 6: Final answer
    x = 23,638.63

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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.