Home / 18,831.54-28,247.48-4,791.59

Finding the Fourth Proportional to 18,831.54, 28,247.48 and 4,791.59

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Solution

The fourth proportional to 18,831.54, 28,247.48 and 4,791.59 is: 7,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.54 : 28,247.48 = 4,791.59 : x
  2. Step 2: Convert to fraction form
    18,831.54/28,247.48 = 4,791.59/x
  3. Step 3: Cross multiply
    18,831.54x = 28,247.48 × 4,791.59
  4. Step 4: Simplify right side
    18,831.54x = 135,350,177.50
  5. Step 5: Solve for x
    x = 135,350,177.50/18,831.54
  6. Step 6: Final answer
    x = 7,187.42

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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.