Home / 19,756.72-29,619.67-13,414.88

Finding the Fourth Proportional to 19,756.72, 29,619.67 and 13,414.88

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Solution

The fourth proportional to 19,756.72, 29,619.67 and 13,414.88 is: 20,111.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,756.72 : 29,619.67 = 13,414.88 : x
  2. Step 2: Convert to fraction form
    19,756.72/29,619.67 = 13,414.88/x
  3. Step 3: Cross multiply
    19,756.72x = 29,619.67 × 13,414.88
  4. Step 4: Simplify right side
    19,756.72x = 397,344,170.59
  5. Step 5: Solve for x
    x = 397,344,170.59/19,756.72
  6. Step 6: Final answer
    x = 20,111.85

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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.