Home / 20,601.01-28,429.14-11,169.37

Finding the Fourth Proportional to 20,601.01, 28,429.14 and 11,169.37

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Solution

The fourth proportional to 20,601.01, 28,429.14 and 11,169.37 is: 15,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.01 : 28,429.14 = 11,169.37 : x
  2. Step 2: Convert to fraction form
    20,601.01/28,429.14 = 11,169.37/x
  3. Step 3: Cross multiply
    20,601.01x = 28,429.14 × 11,169.37
  4. Step 4: Simplify right side
    20,601.01x = 317,535,583.44
  5. Step 5: Solve for x
    x = 317,535,583.44/20,601.01
  6. Step 6: Final answer
    x = 15,413.59

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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.