Home / 47,228.78-70,831.83-13,939.85

Finding the Fourth Proportional to 47,228.78, 70,831.83 and 13,939.85

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Solution

The fourth proportional to 47,228.78, 70,831.83 and 13,939.85 is: 20,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,228.78 : 70,831.83 = 13,939.85 : x
  2. Step 2: Convert to fraction form
    47,228.78/70,831.83 = 13,939.85/x
  3. Step 3: Cross multiply
    47,228.78x = 70,831.83 × 13,939.85
  4. Step 4: Simplify right side
    47,228.78x = 987,385,085.43
  5. Step 5: Solve for x
    x = 987,385,085.43/47,228.78
  6. Step 6: Final answer
    x = 20,906.43

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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.