Home / 19,561.14-29,370.87-13,729.14

Finding the Fourth Proportional to 19,561.14, 29,370.87 and 13,729.14

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Solution

The fourth proportional to 19,561.14, 29,370.87 and 13,729.14 is: 20,614.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.14 : 29,370.87 = 13,729.14 : x
  2. Step 2: Convert to fraction form
    19,561.14/29,370.87 = 13,729.14/x
  3. Step 3: Cross multiply
    19,561.14x = 29,370.87 × 13,729.14
  4. Step 4: Simplify right side
    19,561.14x = 403,236,786.15
  5. Step 5: Solve for x
    x = 403,236,786.15/19,561.14
  6. Step 6: Final answer
    x = 20,614.18

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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.