Home / 20,571.96-28,387.92-11,619.84

Finding the Fourth Proportional to 20,571.96, 28,387.92 and 11,619.84

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Solution

The fourth proportional to 20,571.96, 28,387.92 and 11,619.84 is: 16,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.96 : 28,387.92 = 11,619.84 : x
  2. Step 2: Convert to fraction form
    20,571.96/28,387.92 = 11,619.84/x
  3. Step 3: Cross multiply
    20,571.96x = 28,387.92 × 11,619.84
  4. Step 4: Simplify right side
    20,571.96x = 329,863,088.33
  5. Step 5: Solve for x
    x = 329,863,088.33/20,571.96
  6. Step 6: Final answer
    x = 16,034.60

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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.