Home / 20,896.88-31,346.94-9,051.44

Finding the Fourth Proportional to 20,896.88, 31,346.94 and 9,051.44

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Solution

The fourth proportional to 20,896.88, 31,346.94 and 9,051.44 is: 13,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.88 : 31,346.94 = 9,051.44 : x
  2. Step 2: Convert to fraction form
    20,896.88/31,346.94 = 9,051.44/x
  3. Step 3: Cross multiply
    20,896.88x = 31,346.94 × 9,051.44
  4. Step 4: Simplify right side
    20,896.88x = 283,734,946.59
  5. Step 5: Solve for x
    x = 283,734,946.59/20,896.88
  6. Step 6: Final answer
    x = 13,577.86

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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.