Home / 29,584.80-40,815.36-18,972.72

Finding the Fourth Proportional to 29,584.80, 40,815.36 and 18,972.72

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Solution

The fourth proportional to 29,584.80, 40,815.36 and 18,972.72 is: 26,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,584.80 : 40,815.36 = 18,972.72 : x
  2. Step 2: Convert to fraction form
    29,584.80/40,815.36 = 18,972.72/x
  3. Step 3: Cross multiply
    29,584.80x = 40,815.36 × 18,972.72
  4. Step 4: Simplify right side
    29,584.80x = 774,378,396.98
  5. Step 5: Solve for x
    x = 774,378,396.98/29,584.80
  6. Step 6: Final answer
    x = 26,174.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.