Home / 18,028.80-27,050.40-7,647.84

Finding the Fourth Proportional to 18,028.80, 27,050.40 and 7,647.84

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Solution

The fourth proportional to 18,028.80, 27,050.40 and 7,647.84 is: 11,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.80 : 27,050.40 = 7,647.84 : x
  2. Step 2: Convert to fraction form
    18,028.80/27,050.40 = 7,647.84/x
  3. Step 3: Cross multiply
    18,028.80x = 27,050.40 × 7,647.84
  4. Step 4: Simplify right side
    18,028.80x = 206,877,131.14
  5. Step 5: Solve for x
    x = 206,877,131.14/18,028.80
  6. Step 6: Final answer
    x = 11,474.81

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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.