Home / 20,022.62-27,632-13,296.65

Finding the Fourth Proportional to 20,022.62, 27,632 and 13,296.65

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Solution

The fourth proportional to 20,022.62, 27,632 and 13,296.65 is: 18,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.62 : 27,632 = 13,296.65 : x
  2. Step 2: Convert to fraction form
    20,022.62/27,632 = 13,296.65/x
  3. Step 3: Cross multiply
    20,022.62x = 27,632 × 13,296.65
  4. Step 4: Simplify right side
    20,022.62x = 367,413,032.80
  5. Step 5: Solve for x
    x = 367,413,032.80/20,022.62
  6. Step 6: Final answer
    x = 18,349.90

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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.