Home / 20,729.52-28,610.82-14,438.25

Finding the Fourth Proportional to 20,729.52, 28,610.82 and 14,438.25

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Solution

The fourth proportional to 20,729.52, 28,610.82 and 14,438.25 is: 19,927.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.52 : 28,610.82 = 14,438.25 : x
  2. Step 2: Convert to fraction form
    20,729.52/28,610.82 = 14,438.25/x
  3. Step 3: Cross multiply
    20,729.52x = 28,610.82 × 14,438.25
  4. Step 4: Simplify right side
    20,729.52x = 413,090,171.87
  5. Step 5: Solve for x
    x = 413,090,171.87/20,729.52
  6. Step 6: Final answer
    x = 19,927.63

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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.