Home / 31,682.30-43,718.60-18,932.95

Finding the Fourth Proportional to 31,682.30, 43,718.60 and 18,932.95

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Solution

The fourth proportional to 31,682.30, 43,718.60 and 18,932.95 is: 26,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.30 : 43,718.60 = 18,932.95 : x
  2. Step 2: Convert to fraction form
    31,682.30/43,718.60 = 18,932.95/x
  3. Step 3: Cross multiply
    31,682.30x = 43,718.60 × 18,932.95
  4. Step 4: Simplify right side
    31,682.30x = 827,722,005.91
  5. Step 5: Solve for x
    x = 827,722,005.91/31,682.30
  6. Step 6: Final answer
    x = 26,125.69

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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.