Home / 20,086.37-27,684.58-13,359.97

Finding the Fourth Proportional to 20,086.37, 27,684.58 and 13,359.97

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Solution

The fourth proportional to 20,086.37, 27,684.58 and 13,359.97 is: 18,413.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.37 : 27,684.58 = 13,359.97 : x
  2. Step 2: Convert to fraction form
    20,086.37/27,684.58 = 13,359.97/x
  3. Step 3: Cross multiply
    20,086.37x = 27,684.58 × 13,359.97
  4. Step 4: Simplify right side
    20,086.37x = 369,865,091.46
  5. Step 5: Solve for x
    x = 369,865,091.46/20,086.37
  6. Step 6: Final answer
    x = 18,413.73

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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.