Home / 20,272.09-27,975.33-11,319.52

Finding the Fourth Proportional to 20,272.09, 27,975.33 and 11,319.52

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Solution

The fourth proportional to 20,272.09, 27,975.33 and 11,319.52 is: 15,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.09 : 27,975.33 = 11,319.52 : x
  2. Step 2: Convert to fraction form
    20,272.09/27,975.33 = 11,319.52/x
  3. Step 3: Cross multiply
    20,272.09x = 27,975.33 × 11,319.52
  4. Step 4: Simplify right side
    20,272.09x = 316,667,307.44
  5. Step 5: Solve for x
    x = 316,667,307.44/20,272.09
  6. Step 6: Final answer
    x = 15,620.85

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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.