Home / 20,604.38-28,453.28-16,571.79

Finding the Fourth Proportional to 20,604.38, 28,453.28 and 16,571.79

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Solution

The fourth proportional to 20,604.38, 28,453.28 and 16,571.79 is: 22,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.38 : 28,453.28 = 16,571.79 : x
  2. Step 2: Convert to fraction form
    20,604.38/28,453.28 = 16,571.79/x
  3. Step 3: Cross multiply
    20,604.38x = 28,453.28 × 16,571.79
  4. Step 4: Simplify right side
    20,604.38x = 471,521,698.11
  5. Step 5: Solve for x
    x = 471,521,698.11/20,604.38
  6. Step 6: Final answer
    x = 22,884.54

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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.