Home / 47,881.92-71,812.08-18,289.20

Finding the Fourth Proportional to 47,881.92, 71,812.08 and 18,289.20

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Solution

The fourth proportional to 47,881.92, 71,812.08 and 18,289.20 is: 27,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,881.92 : 71,812.08 = 18,289.20 : x
  2. Step 2: Convert to fraction form
    47,881.92/71,812.08 = 18,289.20/x
  3. Step 3: Cross multiply
    47,881.92x = 71,812.08 × 18,289.20
  4. Step 4: Simplify right side
    47,881.92x = 1,313,385,493.54
  5. Step 5: Solve for x
    x = 1,313,385,493.54/47,881.92
  6. Step 6: Final answer
    x = 27,429.67

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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.