Home / 20,621.94-30,932.91-11,851.26

Finding the Fourth Proportional to 20,621.94, 30,932.91 and 11,851.26

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Solution

The fourth proportional to 20,621.94, 30,932.91 and 11,851.26 is: 17,776.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.94 : 30,932.91 = 11,851.26 : x
  2. Step 2: Convert to fraction form
    20,621.94/30,932.91 = 11,851.26/x
  3. Step 3: Cross multiply
    20,621.94x = 30,932.91 × 11,851.26
  4. Step 4: Simplify right side
    20,621.94x = 366,593,958.97
  5. Step 5: Solve for x
    x = 366,593,958.97/20,621.94
  6. Step 6: Final answer
    x = 17,776.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.