Home / 27,884.72-38,479.60-15,137.62

Finding the Fourth Proportional to 27,884.72, 38,479.60 and 15,137.62

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Solution

The fourth proportional to 27,884.72, 38,479.60 and 15,137.62 is: 20,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,884.72 : 38,479.60 = 15,137.62 : x
  2. Step 2: Convert to fraction form
    27,884.72/38,479.60 = 15,137.62/x
  3. Step 3: Cross multiply
    27,884.72x = 38,479.60 × 15,137.62
  4. Step 4: Simplify right side
    27,884.72x = 582,489,562.55
  5. Step 5: Solve for x
    x = 582,489,562.55/27,884.72
  6. Step 6: Final answer
    x = 20,889.20

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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.