Home / 20,767.68-31,157.49-9,680.94

Finding the Fourth Proportional to 20,767.68, 31,157.49 and 9,680.94

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Solution

The fourth proportional to 20,767.68, 31,157.49 and 9,680.94 is: 14,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.68 : 31,157.49 = 9,680.94 : x
  2. Step 2: Convert to fraction form
    20,767.68/31,157.49 = 9,680.94/x
  3. Step 3: Cross multiply
    20,767.68x = 31,157.49 × 9,680.94
  4. Step 4: Simplify right side
    20,767.68x = 301,633,791.24
  5. Step 5: Solve for x
    x = 301,633,791.24/20,767.68
  6. Step 6: Final answer
    x = 14,524.19

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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.