Home / 20,843.26-31,332.63-16,728.36

Finding the Fourth Proportional to 20,843.26, 31,332.63 and 16,728.36

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Solution

The fourth proportional to 20,843.26, 31,332.63 and 16,728.36 is: 25,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.26 : 31,332.63 = 16,728.36 : x
  2. Step 2: Convert to fraction form
    20,843.26/31,332.63 = 16,728.36/x
  3. Step 3: Cross multiply
    20,843.26x = 31,332.63 × 16,728.36
  4. Step 4: Simplify right side
    20,843.26x = 524,143,514.39
  5. Step 5: Solve for x
    x = 524,143,514.39/20,843.26
  6. Step 6: Final answer
    x = 25,146.91

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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.