Home / 21,413.27-32,156.66-13,141.86

Finding the Fourth Proportional to 21,413.27, 32,156.66 and 13,141.86

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Solution

The fourth proportional to 21,413.27, 32,156.66 and 13,141.86 is: 19,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.27 : 32,156.66 = 13,141.86 : x
  2. Step 2: Convert to fraction form
    21,413.27/32,156.66 = 13,141.86/x
  3. Step 3: Cross multiply
    21,413.27x = 32,156.66 × 13,141.86
  4. Step 4: Simplify right side
    21,413.27x = 422,598,236.05
  5. Step 5: Solve for x
    x = 422,598,236.05/21,413.27
  6. Step 6: Final answer
    x = 19,735.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.