Home / 14,369.88-21,556.32-3,981.64

Finding the Fourth Proportional to 14,369.88, 21,556.32 and 3,981.64

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Solution

The fourth proportional to 14,369.88, 21,556.32 and 3,981.64 is: 5,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.88 : 21,556.32 = 3,981.64 : x
  2. Step 2: Convert to fraction form
    14,369.88/21,556.32 = 3,981.64/x
  3. Step 3: Cross multiply
    14,369.88x = 21,556.32 × 3,981.64
  4. Step 4: Simplify right side
    14,369.88x = 85,829,505.96
  5. Step 5: Solve for x
    x = 85,829,505.96/14,369.88
  6. Step 6: Final answer
    x = 5,972.88

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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.