Home / 19,987.56-27,584.64-12,028.50

Finding the Fourth Proportional to 19,987.56, 27,584.64 and 12,028.50

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Solution

The fourth proportional to 19,987.56, 27,584.64 and 12,028.50 is: 16,600.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.56 : 27,584.64 = 12,028.50 : x
  2. Step 2: Convert to fraction form
    19,987.56/27,584.64 = 12,028.50/x
  3. Step 3: Cross multiply
    19,987.56x = 27,584.64 × 12,028.50
  4. Step 4: Simplify right side
    19,987.56x = 331,801,842.24
  5. Step 5: Solve for x
    x = 331,801,842.24/19,987.56
  6. Step 6: Final answer
    x = 16,600.42

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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.