Home / 47,983.25-71,976.20-12,922.88

Finding the Fourth Proportional to 47,983.25, 71,976.20 and 12,922.88

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Solution

The fourth proportional to 47,983.25, 71,976.20 and 12,922.88 is: 19,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,983.25 : 71,976.20 = 12,922.88 : x
  2. Step 2: Convert to fraction form
    47,983.25/71,976.20 = 12,922.88/x
  3. Step 3: Cross multiply
    47,983.25x = 71,976.20 × 12,922.88
  4. Step 4: Simplify right side
    47,983.25x = 930,139,370.96
  5. Step 5: Solve for x
    x = 930,139,370.96/47,983.25
  6. Step 6: Final answer
    x = 19,384.67

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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.