Home / 20,601.65-30,884.26-8,908.49

Finding the Fourth Proportional to 20,601.65, 30,884.26 and 8,908.49

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Solution

The fourth proportional to 20,601.65, 30,884.26 and 8,908.49 is: 13,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.65 : 30,884.26 = 8,908.49 : x
  2. Step 2: Convert to fraction form
    20,601.65/30,884.26 = 8,908.49/x
  3. Step 3: Cross multiply
    20,601.65x = 30,884.26 × 8,908.49
  4. Step 4: Simplify right side
    20,601.65x = 275,132,121.37
  5. Step 5: Solve for x
    x = 275,132,121.37/20,601.65
  6. Step 6: Final answer
    x = 13,354.86

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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.