Home / 20,674.19-30,975.62-11,320.94

Finding the Fourth Proportional to 20,674.19, 30,975.62 and 11,320.94

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Solution

The fourth proportional to 20,674.19, 30,975.62 and 11,320.94 is: 16,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.19 : 30,975.62 = 11,320.94 : x
  2. Step 2: Convert to fraction form
    20,674.19/30,975.62 = 11,320.94/x
  3. Step 3: Cross multiply
    20,674.19x = 30,975.62 × 11,320.94
  4. Step 4: Simplify right side
    20,674.19x = 350,673,135.48
  5. Step 5: Solve for x
    x = 350,673,135.48/20,674.19
  6. Step 6: Final answer
    x = 16,961.88

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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.