Home / 33,678.90-50,518.32-18,695.20

Finding the Fourth Proportional to 33,678.90, 50,518.32 and 18,695.20

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Solution

The fourth proportional to 33,678.90, 50,518.32 and 18,695.20 is: 28,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,678.90 : 50,518.32 = 18,695.20 : x
  2. Step 2: Convert to fraction form
    33,678.90/50,518.32 = 18,695.20/x
  3. Step 3: Cross multiply
    33,678.90x = 50,518.32 × 18,695.20
  4. Step 4: Simplify right side
    33,678.90x = 944,450,096.06
  5. Step 5: Solve for x
    x = 944,450,096.06/33,678.90
  6. Step 6: Final answer
    x = 28,042.78

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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.