Home / 28,831.03-43,245-7,770.73

Finding the Fourth Proportional to 28,831.03, 43,245 and 7,770.73

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Solution

The fourth proportional to 28,831.03, 43,245 and 7,770.73 is: 11,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.03 : 43,245 = 7,770.73 : x
  2. Step 2: Convert to fraction form
    28,831.03/43,245 = 7,770.73/x
  3. Step 3: Cross multiply
    28,831.03x = 43,245 × 7,770.73
  4. Step 4: Simplify right side
    28,831.03x = 336,045,218.85
  5. Step 5: Solve for x
    x = 336,045,218.85/28,831.03
  6. Step 6: Final answer
    x = 11,655.68

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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.