Home / 19,442.88-29,179.89-8,917.86

Finding the Fourth Proportional to 19,442.88, 29,179.89 and 8,917.86

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Solution

The fourth proportional to 19,442.88, 29,179.89 and 8,917.86 is: 13,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,442.88 : 29,179.89 = 8,917.86 : x
  2. Step 2: Convert to fraction form
    19,442.88/29,179.89 = 8,917.86/x
  3. Step 3: Cross multiply
    19,442.88x = 29,179.89 × 8,917.86
  4. Step 4: Simplify right side
    19,442.88x = 260,222,172.70
  5. Step 5: Solve for x
    x = 260,222,172.70/19,442.88
  6. Step 6: Final answer
    x = 13,383.93

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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.