Home / 20,185.48-27,859.30-11,800.36

Finding the Fourth Proportional to 20,185.48, 27,859.30 and 11,800.36

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Solution

The fourth proportional to 20,185.48, 27,859.30 and 11,800.36 is: 16,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.48 : 27,859.30 = 11,800.36 : x
  2. Step 2: Convert to fraction form
    20,185.48/27,859.30 = 11,800.36/x
  3. Step 3: Cross multiply
    20,185.48x = 27,859.30 × 11,800.36
  4. Step 4: Simplify right side
    20,185.48x = 328,749,769.35
  5. Step 5: Solve for x
    x = 328,749,769.35/20,185.48
  6. Step 6: Final answer
    x = 16,286.45

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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.