Home / 19,771.79-29,668.62-8,093.21

Finding the Fourth Proportional to 19,771.79, 29,668.62 and 8,093.21

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Solution

The fourth proportional to 19,771.79, 29,668.62 and 8,093.21 is: 12,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.79 : 29,668.62 = 8,093.21 : x
  2. Step 2: Convert to fraction form
    19,771.79/29,668.62 = 8,093.21/x
  3. Step 3: Cross multiply
    19,771.79x = 29,668.62 × 8,093.21
  4. Step 4: Simplify right side
    19,771.79x = 240,114,372.07
  5. Step 5: Solve for x
    x = 240,114,372.07/19,771.79
  6. Step 6: Final answer
    x = 12,144.29

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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.