Home / 13,381.62-20,071.65-4,021.44

Finding the Fourth Proportional to 13,381.62, 20,071.65 and 4,021.44

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Solution

The fourth proportional to 13,381.62, 20,071.65 and 4,021.44 is: 6,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.62 : 20,071.65 = 4,021.44 : x
  2. Step 2: Convert to fraction form
    13,381.62/20,071.65 = 4,021.44/x
  3. Step 3: Cross multiply
    13,381.62x = 20,071.65 × 4,021.44
  4. Step 4: Simplify right side
    13,381.62x = 80,716,936.18
  5. Step 5: Solve for x
    x = 80,716,936.18/13,381.62
  6. Step 6: Final answer
    x = 6,031.93

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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.