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Finding the Fourth Proportional to 34,696.38, 47,881.03 and 18,780.78

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Solution

The fourth proportional to 34,696.38, 47,881.03 and 18,780.78 is: 25,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,696.38 : 47,881.03 = 18,780.78 : x
  2. Step 2: Convert to fraction form
    34,696.38/47,881.03 = 18,780.78/x
  3. Step 3: Cross multiply
    34,696.38x = 47,881.03 × 18,780.78
  4. Step 4: Simplify right side
    34,696.38x = 899,243,090.60
  5. Step 5: Solve for x
    x = 899,243,090.60/34,696.38
  6. Step 6: Final answer
    x = 25,917.49

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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.