Home / 21,325.27-29,428.87-11,893.83

Finding the Fourth Proportional to 21,325.27, 29,428.87 and 11,893.83

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Solution

The fourth proportional to 21,325.27, 29,428.87 and 11,893.83 is: 16,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.27 : 29,428.87 = 11,893.83 : x
  2. Step 2: Convert to fraction form
    21,325.27/29,428.87 = 11,893.83/x
  3. Step 3: Cross multiply
    21,325.27x = 29,428.87 × 11,893.83
  4. Step 4: Simplify right side
    21,325.27x = 350,021,914.26
  5. Step 5: Solve for x
    x = 350,021,914.26/21,325.27
  6. Step 6: Final answer
    x = 16,413.48

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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.