Home / 47,507.76-71,263.46-21,212.73

Finding the Fourth Proportional to 47,507.76, 71,263.46 and 21,212.73

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Solution

The fourth proportional to 47,507.76, 71,263.46 and 21,212.73 is: 31,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,507.76 : 71,263.46 = 21,212.73 : x
  2. Step 2: Convert to fraction form
    47,507.76/71,263.46 = 21,212.73/x
  3. Step 3: Cross multiply
    47,507.76x = 71,263.46 × 21,212.73
  4. Step 4: Simplify right side
    47,507.76x = 1,511,692,535.85
  5. Step 5: Solve for x
    x = 1,511,692,535.85/47,507.76
  6. Step 6: Final answer
    x = 31,819.91

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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.