Home / 17,129.78-25,695.20-4,649.75

Finding the Fourth Proportional to 17,129.78, 25,695.20 and 4,649.75

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Solution

The fourth proportional to 17,129.78, 25,695.20 and 4,649.75 is: 6,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.78 : 25,695.20 = 4,649.75 : x
  2. Step 2: Convert to fraction form
    17,129.78/25,695.20 = 4,649.75/x
  3. Step 3: Cross multiply
    17,129.78x = 25,695.20 × 4,649.75
  4. Step 4: Simplify right side
    17,129.78x = 119,476,256.20
  5. Step 5: Solve for x
    x = 119,476,256.20/17,129.78
  6. Step 6: Final answer
    x = 6,974.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.