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Finding the Fourth Proportional to 31,897.95, 44,055.81 and 21,269.13

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Solution

The fourth proportional to 31,897.95, 44,055.81 and 21,269.13 is: 29,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,897.95 : 44,055.81 = 21,269.13 : x
  2. Step 2: Convert to fraction form
    31,897.95/44,055.81 = 21,269.13/x
  3. Step 3: Cross multiply
    31,897.95x = 44,055.81 × 21,269.13
  4. Step 4: Simplify right side
    31,897.95x = 937,028,750.15
  5. Step 5: Solve for x
    x = 937,028,750.15/31,897.95
  6. Step 6: Final answer
    x = 29,375.83

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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.