Home / 31,436.37-47,121.75-12,708.81

Finding the Fourth Proportional to 31,436.37, 47,121.75 and 12,708.81

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Solution

The fourth proportional to 31,436.37, 47,121.75 and 12,708.81 is: 19,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.37 : 47,121.75 = 12,708.81 : x
  2. Step 2: Convert to fraction form
    31,436.37/47,121.75 = 12,708.81/x
  3. Step 3: Cross multiply
    31,436.37x = 47,121.75 × 12,708.81
  4. Step 4: Simplify right side
    31,436.37x = 598,861,367.62
  5. Step 5: Solve for x
    x = 598,861,367.62/31,436.37
  6. Step 6: Final answer
    x = 19,049.95

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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.