Home / 31,718.24-43,770.56-18,288.64

Finding the Fourth Proportional to 31,718.24, 43,770.56 and 18,288.64

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Solution

The fourth proportional to 31,718.24, 43,770.56 and 18,288.64 is: 25,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.24 : 43,770.56 = 18,288.64 : x
  2. Step 2: Convert to fraction form
    31,718.24/43,770.56 = 18,288.64/x
  3. Step 3: Cross multiply
    31,718.24x = 43,770.56 × 18,288.64
  4. Step 4: Simplify right side
    31,718.24x = 800,504,014.44
  5. Step 5: Solve for x
    x = 800,504,014.44/31,718.24
  6. Step 6: Final answer
    x = 25,237.97

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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.