Home / 19,819.31-27,351.50-11,860.00

Finding the Fourth Proportional to 19,819.31, 27,351.50 and 11,860.00

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Solution

The fourth proportional to 19,819.31, 27,351.50 and 11,860.00 is: 16,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.31 : 27,351.50 = 11,860.00 : x
  2. Step 2: Convert to fraction form
    19,819.31/27,351.50 = 11,860.00/x
  3. Step 3: Cross multiply
    19,819.31x = 27,351.50 × 11,860.00
  4. Step 4: Simplify right side
    19,819.31x = 324,388,662.32
  5. Step 5: Solve for x
    x = 324,388,662.32/19,819.31
  6. Step 6: Final answer
    x = 16,367.31

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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.