Home / 31,625.27-43,651.94-20,877.99

Finding the Fourth Proportional to 31,625.27, 43,651.94 and 20,877.99

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Solution

The fourth proportional to 31,625.27, 43,651.94 and 20,877.99 is: 28,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,625.27 : 43,651.94 = 20,877.99 : x
  2. Step 2: Convert to fraction form
    31,625.27/43,651.94 = 20,877.99/x
  3. Step 3: Cross multiply
    31,625.27x = 43,651.94 × 20,877.99
  4. Step 4: Simplify right side
    31,625.27x = 911,364,766.80
  5. Step 5: Solve for x
    x = 911,364,766.80/31,625.27
  6. Step 6: Final answer
    x = 28,817.61

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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.