Home / 28,835.76-43,258.31-9,112.88

Finding the Fourth Proportional to 28,835.76, 43,258.31 and 9,112.88

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Solution

The fourth proportional to 28,835.76, 43,258.31 and 9,112.88 is: 13,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.76 : 43,258.31 = 9,112.88 : x
  2. Step 2: Convert to fraction form
    28,835.76/43,258.31 = 9,112.88/x
  3. Step 3: Cross multiply
    28,835.76x = 43,258.31 × 9,112.88
  4. Step 4: Simplify right side
    28,835.76x = 394,207,526.18
  5. Step 5: Solve for x
    x = 394,207,526.18/28,835.76
  6. Step 6: Final answer
    x = 13,670.79

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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.