Home / 20,282.37-27,987.63-11,668.32

Finding the Fourth Proportional to 20,282.37, 27,987.63 and 11,668.32

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Solution

The fourth proportional to 20,282.37, 27,987.63 and 11,668.32 is: 16,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.37 : 27,987.63 = 11,668.32 : x
  2. Step 2: Convert to fraction form
    20,282.37/27,987.63 = 11,668.32/x
  3. Step 3: Cross multiply
    20,282.37x = 27,987.63 × 11,668.32
  4. Step 4: Simplify right side
    20,282.37x = 326,568,622.88
  5. Step 5: Solve for x
    x = 326,568,622.88/20,282.37
  6. Step 6: Final answer
    x = 16,101.11

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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.