Home / 19,771.87-27,285.15-10,819.37

Finding the Fourth Proportional to 19,771.87, 27,285.15 and 10,819.37

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Solution

The fourth proportional to 19,771.87, 27,285.15 and 10,819.37 is: 14,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.87 : 27,285.15 = 10,819.37 : x
  2. Step 2: Convert to fraction form
    19,771.87/27,285.15 = 10,819.37/x
  3. Step 3: Cross multiply
    19,771.87x = 27,285.15 × 10,819.37
  4. Step 4: Simplify right side
    19,771.87x = 295,208,133.36
  5. Step 5: Solve for x
    x = 295,208,133.36/19,771.87
  6. Step 6: Final answer
    x = 14,930.71

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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.