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Finding the Fourth Proportional to 41,239, 61,807.78 and 19,021.52

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Solution

The fourth proportional to 41,239, 61,807.78 and 19,021.52 is: 28,508.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,239 : 61,807.78 = 19,021.52 : x
  2. Step 2: Convert to fraction form
    41,239/61,807.78 = 19,021.52/x
  3. Step 3: Cross multiply
    41,239x = 61,807.78 × 19,021.52
  4. Step 4: Simplify right side
    41,239x = 1,175,677,923.43
  5. Step 5: Solve for x
    x = 1,175,677,923.43/41,239
  6. Step 6: Final answer
    x = 28,508.89

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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.