Home / 20,413.89-28,169.00-11,462.37

Finding the Fourth Proportional to 20,413.89, 28,169.00 and 11,462.37

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Solution

The fourth proportional to 20,413.89, 28,169.00 and 11,462.37 is: 15,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.89 : 28,169.00 = 11,462.37 : x
  2. Step 2: Convert to fraction form
    20,413.89/28,169.00 = 11,462.37/x
  3. Step 3: Cross multiply
    20,413.89x = 28,169.00 × 11,462.37
  4. Step 4: Simplify right side
    20,413.89x = 322,883,443.22
  5. Step 5: Solve for x
    x = 322,883,443.22/20,413.89
  6. Step 6: Final answer
    x = 15,816.85

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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.