Home / 31,758.15-43,846.04-20,447.23

Finding the Fourth Proportional to 31,758.15, 43,846.04 and 20,447.23

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Solution

The fourth proportional to 31,758.15, 43,846.04 and 20,447.23 is: 28,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,758.15 : 43,846.04 = 20,447.23 : x
  2. Step 2: Convert to fraction form
    31,758.15/43,846.04 = 20,447.23/x
  3. Step 3: Cross multiply
    31,758.15x = 43,846.04 × 20,447.23
  4. Step 4: Simplify right side
    31,758.15x = 896,530,064.47
  5. Step 5: Solve for x
    x = 896,530,064.47/31,758.15
  6. Step 6: Final answer
    x = 28,229.92

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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.