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Finding the Fourth Proportional to 27,893.51, 41,840.50 and 8,172.39

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Solution

The fourth proportional to 27,893.51, 41,840.50 and 8,172.39 is: 12,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.51 : 41,840.50 = 8,172.39 : x
  2. Step 2: Convert to fraction form
    27,893.51/41,840.50 = 8,172.39/x
  3. Step 3: Cross multiply
    27,893.51x = 41,840.50 × 8,172.39
  4. Step 4: Simplify right side
    27,893.51x = 341,937,035.59
  5. Step 5: Solve for x
    x = 341,937,035.59/27,893.51
  6. Step 6: Final answer
    x = 12,258.66

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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.