Home / 13,631.88-20,446.23-3,771.93

Finding the Fourth Proportional to 13,631.88, 20,446.23 and 3,771.93

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Solution

The fourth proportional to 13,631.88, 20,446.23 and 3,771.93 is: 5,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.88 : 20,446.23 = 3,771.93 : x
  2. Step 2: Convert to fraction form
    13,631.88/20,446.23 = 3,771.93/x
  3. Step 3: Cross multiply
    13,631.88x = 20,446.23 × 3,771.93
  4. Step 4: Simplify right side
    13,631.88x = 77,121,839.14
  5. Step 5: Solve for x
    x = 77,121,839.14/13,631.88
  6. Step 6: Final answer
    x = 5,657.46

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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.