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Finding the Fourth Proportional to 41,820, 62,735.85 and 12,239.97

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Solution

The fourth proportional to 41,820, 62,735.85 and 12,239.97 is: 18,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,820 : 62,735.85 = 12,239.97 : x
  2. Step 2: Convert to fraction form
    41,820/62,735.85 = 12,239.97/x
  3. Step 3: Cross multiply
    41,820x = 62,735.85 × 12,239.97
  4. Step 4: Simplify right side
    41,820x = 767,884,921.92
  5. Step 5: Solve for x
    x = 767,884,921.92/41,820
  6. Step 6: Final answer
    x = 18,361.67

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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.