Home / 31,999.08-47,993.76-12,286.92

Finding the Fourth Proportional to 31,999.08, 47,993.76 and 12,286.92

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Solution

The fourth proportional to 31,999.08, 47,993.76 and 12,286.92 is: 18,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,999.08 : 47,993.76 = 12,286.92 : x
  2. Step 2: Convert to fraction form
    31,999.08/47,993.76 = 12,286.92/x
  3. Step 3: Cross multiply
    31,999.08x = 47,993.76 × 12,286.92
  4. Step 4: Simplify right side
    31,999.08x = 589,695,489.62
  5. Step 5: Solve for x
    x = 589,695,489.62/31,999.08
  6. Step 6: Final answer
    x = 18,428.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.