Home / 19,739.05-27,238.83-11,239.81

Finding the Fourth Proportional to 19,739.05, 27,238.83 and 11,239.81

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Solution

The fourth proportional to 19,739.05, 27,238.83 and 11,239.81 is: 15,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.05 : 27,238.83 = 11,239.81 : x
  2. Step 2: Convert to fraction form
    19,739.05/27,238.83 = 11,239.81/x
  3. Step 3: Cross multiply
    19,739.05x = 27,238.83 × 11,239.81
  4. Step 4: Simplify right side
    19,739.05x = 306,159,273.82
  5. Step 5: Solve for x
    x = 306,159,273.82/19,739.05
  6. Step 6: Final answer
    x = 15,510.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.