Home / 27,620.12-38,096.52-20,884.16

Finding the Fourth Proportional to 27,620.12, 38,096.52 and 20,884.16

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Solution

The fourth proportional to 27,620.12, 38,096.52 and 20,884.16 is: 28,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.12 : 38,096.52 = 20,884.16 : x
  2. Step 2: Convert to fraction form
    27,620.12/38,096.52 = 20,884.16/x
  3. Step 3: Cross multiply
    27,620.12x = 38,096.52 × 20,884.16
  4. Step 4: Simplify right side
    27,620.12x = 795,613,819.12
  5. Step 5: Solve for x
    x = 795,613,819.12/27,620.12
  6. Step 6: Final answer
    x = 28,805.59

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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.