Home / 20,968.88-28,937.25-11,537.64

Finding the Fourth Proportional to 20,968.88, 28,937.25 and 11,537.64

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Solution

The fourth proportional to 20,968.88, 28,937.25 and 11,537.64 is: 15,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.88 : 28,937.25 = 11,537.64 : x
  2. Step 2: Convert to fraction form
    20,968.88/28,937.25 = 11,537.64/x
  3. Step 3: Cross multiply
    20,968.88x = 28,937.25 × 11,537.64
  4. Step 4: Simplify right side
    20,968.88x = 333,867,573.09
  5. Step 5: Solve for x
    x = 333,867,573.09/20,968.88
  6. Step 6: Final answer
    x = 15,922.05

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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.