Home / 31,682.06-43,718.26-18,932.70

Finding the Fourth Proportional to 31,682.06, 43,718.26 and 18,932.70

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Solution

The fourth proportional to 31,682.06, 43,718.26 and 18,932.70 is: 26,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.06 : 43,718.26 = 18,932.70 : x
  2. Step 2: Convert to fraction form
    31,682.06/43,718.26 = 18,932.70/x
  3. Step 3: Cross multiply
    31,682.06x = 43,718.26 × 18,932.70
  4. Step 4: Simplify right side
    31,682.06x = 827,704,606.44
  5. Step 5: Solve for x
    x = 827,704,606.44/31,682.06
  6. Step 6: Final answer
    x = 26,125.34

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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.