Home / 13,890.54-20,837.82-4,029.86

Finding the Fourth Proportional to 13,890.54, 20,837.82 and 4,029.86

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Solution

The fourth proportional to 13,890.54, 20,837.82 and 4,029.86 is: 6,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.54 : 20,837.82 = 4,029.86 : x
  2. Step 2: Convert to fraction form
    13,890.54/20,837.82 = 4,029.86/x
  3. Step 3: Cross multiply
    13,890.54x = 20,837.82 × 4,029.86
  4. Step 4: Simplify right side
    13,890.54x = 83,973,497.31
  5. Step 5: Solve for x
    x = 83,973,497.31/13,890.54
  6. Step 6: Final answer
    x = 6,045.37

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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.