Home / 22,067.96-30,429.06-20,668.28

Finding the Fourth Proportional to 22,067.96, 30,429.06 and 20,668.28

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Solution

The fourth proportional to 22,067.96, 30,429.06 and 20,668.28 is: 28,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,067.96 : 30,429.06 = 20,668.28 : x
  2. Step 2: Convert to fraction form
    22,067.96/30,429.06 = 20,668.28/x
  3. Step 3: Cross multiply
    22,067.96x = 30,429.06 × 20,668.28
  4. Step 4: Simplify right side
    22,067.96x = 628,916,332.22
  5. Step 5: Solve for x
    x = 628,916,332.22/22,067.96
  6. Step 6: Final answer
    x = 28,499.07

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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.