Home / 20,711.37-28,584.71-11,757.03

Finding the Fourth Proportional to 20,711.37, 28,584.71 and 11,757.03

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Solution

The fourth proportional to 20,711.37, 28,584.71 and 11,757.03 is: 16,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.37 : 28,584.71 = 11,757.03 : x
  2. Step 2: Convert to fraction form
    20,711.37/28,584.71 = 11,757.03/x
  3. Step 3: Cross multiply
    20,711.37x = 28,584.71 × 11,757.03
  4. Step 4: Simplify right side
    20,711.37x = 336,071,293.01
  5. Step 5: Solve for x
    x = 336,071,293.01/20,711.37
  6. Step 6: Final answer
    x = 16,226.42

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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.