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Finding the Fourth Proportional to 34,854.13, 48,098.78 and 18,938.80

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Solution

The fourth proportional to 34,854.13, 48,098.78 and 18,938.80 is: 26,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,854.13 : 48,098.78 = 18,938.80 : x
  2. Step 2: Convert to fraction form
    34,854.13/48,098.78 = 18,938.80/x
  3. Step 3: Cross multiply
    34,854.13x = 48,098.78 × 18,938.80
  4. Step 4: Simplify right side
    34,854.13x = 910,933,174.66
  5. Step 5: Solve for x
    x = 910,933,174.66/34,854.13
  6. Step 6: Final answer
    x = 26,135.59

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