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Finding the Fourth Proportional to 34,894.83, 48,155.09 and 18,979.39

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Solution

The fourth proportional to 34,894.83, 48,155.09 and 18,979.39 is: 26,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,894.83 : 48,155.09 = 18,979.39 : x
  2. Step 2: Convert to fraction form
    34,894.83/48,155.09 = 18,979.39/x
  3. Step 3: Cross multiply
    34,894.83x = 48,155.09 × 18,979.39
  4. Step 4: Simplify right side
    34,894.83x = 913,954,233.60
  5. Step 5: Solve for x
    x = 913,954,233.60/34,894.83
  6. Step 6: Final answer
    x = 26,191.68

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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.