Home / 20,028.10-27,609.32-15,765.52

Finding the Fourth Proportional to 20,028.10, 27,609.32 and 15,765.52

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Solution

The fourth proportional to 20,028.10, 27,609.32 and 15,765.52 is: 21,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.10 : 27,609.32 = 15,765.52 : x
  2. Step 2: Convert to fraction form
    20,028.10/27,609.32 = 15,765.52/x
  3. Step 3: Cross multiply
    20,028.10x = 27,609.32 × 15,765.52
  4. Step 4: Simplify right side
    20,028.10x = 435,275,286.65
  5. Step 5: Solve for x
    x = 435,275,286.65/20,028.10
  6. Step 6: Final answer
    x = 21,733.23

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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.