Home / 18,930.44-26,099.74-15,514.88

Finding the Fourth Proportional to 18,930.44, 26,099.74 and 15,514.88

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Solution

The fourth proportional to 18,930.44, 26,099.74 and 15,514.88 is: 21,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.44 : 26,099.74 = 15,514.88 : x
  2. Step 2: Convert to fraction form
    18,930.44/26,099.74 = 15,514.88/x
  3. Step 3: Cross multiply
    18,930.44x = 26,099.74 × 15,514.88
  4. Step 4: Simplify right side
    18,930.44x = 404,934,334.13
  5. Step 5: Solve for x
    x = 404,934,334.13/18,930.44
  6. Step 6: Final answer
    x = 21,390.65

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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.