Home / 13,889.60-20,835.75-4,028.66

Finding the Fourth Proportional to 13,889.60, 20,835.75 and 4,028.66

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Solution

The fourth proportional to 13,889.60, 20,835.75 and 4,028.66 is: 6,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.60 : 20,835.75 = 4,028.66 : x
  2. Step 2: Convert to fraction form
    13,889.60/20,835.75 = 4,028.66/x
  3. Step 3: Cross multiply
    13,889.60x = 20,835.75 × 4,028.66
  4. Step 4: Simplify right side
    13,889.60x = 83,940,152.60
  5. Step 5: Solve for x
    x = 83,940,152.60/13,889.60
  6. Step 6: Final answer
    x = 6,043.38

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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.