Home / 19,579.70-29,350.24-12,539.72

Finding the Fourth Proportional to 19,579.70, 29,350.24 and 12,539.72

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Solution

The fourth proportional to 19,579.70, 29,350.24 and 12,539.72 is: 18,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.70 : 29,350.24 = 12,539.72 : x
  2. Step 2: Convert to fraction form
    19,579.70/29,350.24 = 12,539.72/x
  3. Step 3: Cross multiply
    19,579.70x = 29,350.24 × 12,539.72
  4. Step 4: Simplify right side
    19,579.70x = 368,043,791.53
  5. Step 5: Solve for x
    x = 368,043,791.53/19,579.70
  6. Step 6: Final answer
    x = 18,797.21

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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.