Home / 31,329.27-47,037.66-20,831.67

Finding the Fourth Proportional to 31,329.27, 47,037.66 and 20,831.67

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Solution

The fourth proportional to 31,329.27, 47,037.66 and 20,831.67 is: 31,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.27 : 47,037.66 = 20,831.67 : x
  2. Step 2: Convert to fraction form
    31,329.27/47,037.66 = 20,831.67/x
  3. Step 3: Cross multiply
    31,329.27x = 47,037.66 × 20,831.67
  4. Step 4: Simplify right side
    31,329.27x = 979,873,010.69
  5. Step 5: Solve for x
    x = 979,873,010.69/31,329.27
  6. Step 6: Final answer
    x = 31,276.60

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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.