Home / 34,120.17-51,191.87-20,819.79

Finding the Fourth Proportional to 34,120.17, 51,191.87 and 20,819.79

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Solution

The fourth proportional to 34,120.17, 51,191.87 and 20,819.79 is: 31,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,120.17 : 51,191.87 = 20,819.79 : x
  2. Step 2: Convert to fraction form
    34,120.17/51,191.87 = 20,819.79/x
  3. Step 3: Cross multiply
    34,120.17x = 51,191.87 × 20,819.79
  4. Step 4: Simplify right side
    34,120.17x = 1,065,803,879.01
  5. Step 5: Solve for x
    x = 1,065,803,879.01/34,120.17
  6. Step 6: Final answer
    x = 31,236.77

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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.