Home / 21,324.38-29,428.26-11,893.56

Finding the Fourth Proportional to 21,324.38, 29,428.26 and 11,893.56

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Solution

The fourth proportional to 21,324.38, 29,428.26 and 11,893.56 is: 16,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.38 : 29,428.26 = 11,893.56 : x
  2. Step 2: Convert to fraction form
    21,324.38/29,428.26 = 11,893.56/x
  3. Step 3: Cross multiply
    21,324.38x = 29,428.26 × 11,893.56
  4. Step 4: Simplify right side
    21,324.38x = 350,006,776.01
  5. Step 5: Solve for x
    x = 350,006,776.01/21,324.38
  6. Step 6: Final answer
    x = 16,413.46

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1.5x scale

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.