Home / 20,366.24-28,106.60-11,413.31

Finding the Fourth Proportional to 20,366.24, 28,106.60 and 11,413.31

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Solution

The fourth proportional to 20,366.24, 28,106.60 and 11,413.31 is: 15,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.24 : 28,106.60 = 11,413.31 : x
  2. Step 2: Convert to fraction form
    20,366.24/28,106.60 = 11,413.31/x
  3. Step 3: Cross multiply
    20,366.24x = 28,106.60 × 11,413.31
  4. Step 4: Simplify right side
    20,366.24x = 320,789,141.25
  5. Step 5: Solve for x
    x = 320,789,141.25/20,366.24
  6. Step 6: Final answer
    x = 15,751.03

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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.