Home / 20,800.36-31,183.26-14,542.48

Finding the Fourth Proportional to 20,800.36, 31,183.26 and 14,542.48

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Solution

The fourth proportional to 20,800.36, 31,183.26 and 14,542.48 is: 21,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.36 : 31,183.26 = 14,542.48 : x
  2. Step 2: Convert to fraction form
    20,800.36/31,183.26 = 14,542.48/x
  3. Step 3: Cross multiply
    20,800.36x = 31,183.26 × 14,542.48
  4. Step 4: Simplify right side
    20,800.36x = 453,481,934.88
  5. Step 5: Solve for x
    x = 453,481,934.88/20,800.36
  6. Step 6: Final answer
    x = 21,801.64

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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.