Home / 31,836.89-43,898.67-20,336.33

Finding the Fourth Proportional to 31,836.89, 43,898.67 and 20,336.33

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Solution

The fourth proportional to 31,836.89, 43,898.67 and 20,336.33 is: 28,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.89 : 43,898.67 = 20,336.33 : x
  2. Step 2: Convert to fraction form
    31,836.89/43,898.67 = 20,336.33/x
  3. Step 3: Cross multiply
    31,836.89x = 43,898.67 × 20,336.33
  4. Step 4: Simplify right side
    31,836.89x = 892,737,620.19
  5. Step 5: Solve for x
    x = 892,737,620.19/31,836.89
  6. Step 6: Final answer
    x = 28,040.99

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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.