Home / 19,144.62-28,714.65-5,105.70

Finding the Fourth Proportional to 19,144.62, 28,714.65 and 5,105.70

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Solution

The fourth proportional to 19,144.62, 28,714.65 and 5,105.70 is: 7,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.62 : 28,714.65 = 5,105.70 : x
  2. Step 2: Convert to fraction form
    19,144.62/28,714.65 = 5,105.70/x
  3. Step 3: Cross multiply
    19,144.62x = 28,714.65 × 5,105.70
  4. Step 4: Simplify right side
    19,144.62x = 146,608,388.51
  5. Step 5: Solve for x
    x = 146,608,388.51/19,144.62
  6. Step 6: Final answer
    x = 7,657.94

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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.