Home / 21,485.25-32,144.01-18,992.07

Finding the Fourth Proportional to 21,485.25, 32,144.01 and 18,992.07

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Solution

The fourth proportional to 21,485.25, 32,144.01 and 18,992.07 is: 28,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.25 : 32,144.01 = 18,992.07 : x
  2. Step 2: Convert to fraction form
    21,485.25/32,144.01 = 18,992.07/x
  3. Step 3: Cross multiply
    21,485.25x = 32,144.01 × 18,992.07
  4. Step 4: Simplify right side
    21,485.25x = 610,481,288.00
  5. Step 5: Solve for x
    x = 610,481,288.00/21,485.25
  6. Step 6: Final answer
    x = 28,413.97

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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.