Home / 20,668.88-28,523.25-11,237.64

Finding the Fourth Proportional to 20,668.88, 28,523.25 and 11,237.64

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Solution

The fourth proportional to 20,668.88, 28,523.25 and 11,237.64 is: 15,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.88 : 28,523.25 = 11,237.64 : x
  2. Step 2: Convert to fraction form
    20,668.88/28,523.25 = 11,237.64/x
  3. Step 3: Cross multiply
    20,668.88x = 28,523.25 × 11,237.64
  4. Step 4: Simplify right side
    20,668.88x = 320,534,015.13
  5. Step 5: Solve for x
    x = 320,534,015.13/20,668.88
  6. Step 6: Final answer
    x = 15,508.05

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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.