Home / 19,679.90-29,486.97-13,826.03

Finding the Fourth Proportional to 19,679.90, 29,486.97 and 13,826.03

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Solution

The fourth proportional to 19,679.90, 29,486.97 and 13,826.03 is: 20,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.90 : 29,486.97 = 13,826.03 : x
  2. Step 2: Convert to fraction form
    19,679.90/29,486.97 = 13,826.03/x
  3. Step 3: Cross multiply
    19,679.90x = 29,486.97 × 13,826.03
  4. Step 4: Simplify right side
    19,679.90x = 407,687,584.39
  5. Step 5: Solve for x
    x = 407,687,584.39/19,679.90
  6. Step 6: Final answer
    x = 20,715.94

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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.