Home / 20,020.62-27,629.24-13,294.65

Finding the Fourth Proportional to 20,020.62, 27,629.24 and 13,294.65

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Solution

The fourth proportional to 20,020.62, 27,629.24 and 13,294.65 is: 18,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.62 : 27,629.24 = 13,294.65 : x
  2. Step 2: Convert to fraction form
    20,020.62/27,629.24 = 13,294.65/x
  3. Step 3: Cross multiply
    20,020.62x = 27,629.24 × 13,294.65
  4. Step 4: Simplify right side
    20,020.62x = 367,321,009.09
  5. Step 5: Solve for x
    x = 367,321,009.09/20,020.62
  6. Step 6: Final answer
    x = 18,347.13

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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.