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Finding the Fourth Proportional to 34,919, 48,188.22 and 20,015

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Solution

The fourth proportional to 34,919, 48,188.22 and 20,015 is: 27,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,919 : 48,188.22 = 20,015 : x
  2. Step 2: Convert to fraction form
    34,919/48,188.22 = 20,015/x
  3. Step 3: Cross multiply
    34,919x = 48,188.22 × 20,015
  4. Step 4: Simplify right side
    34,919x = 964,487,223.30
  5. Step 5: Solve for x
    x = 964,487,223.30/34,919
  6. Step 6: Final answer
    x = 27,620.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.