Home / 19,771.38-29,663.90-12,367.01

Finding the Fourth Proportional to 19,771.38, 29,663.90 and 12,367.01

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Solution

The fourth proportional to 19,771.38, 29,663.90 and 12,367.01 is: 18,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.38 : 29,663.90 = 12,367.01 : x
  2. Step 2: Convert to fraction form
    19,771.38/29,663.90 = 12,367.01/x
  3. Step 3: Cross multiply
    19,771.38x = 29,663.90 × 12,367.01
  4. Step 4: Simplify right side
    19,771.38x = 366,853,537.78
  5. Step 5: Solve for x
    x = 366,853,537.78/19,771.38
  6. Step 6: Final answer
    x = 18,554.78

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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.