Home / 19,619.75-27,069.27-11,120.51

Finding the Fourth Proportional to 19,619.75, 27,069.27 and 11,120.51

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Solution

The fourth proportional to 19,619.75, 27,069.27 and 11,120.51 is: 15,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.75 : 27,069.27 = 11,120.51 : x
  2. Step 2: Convert to fraction form
    19,619.75/27,069.27 = 11,120.51/x
  3. Step 3: Cross multiply
    19,619.75x = 27,069.27 × 11,120.51
  4. Step 4: Simplify right side
    19,619.75x = 301,024,087.73
  5. Step 5: Solve for x
    x = 301,024,087.73/19,619.75
  6. Step 6: Final answer
    x = 15,342.91

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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.