Home / 19,998.36-29,953.80-12,183.48

Finding the Fourth Proportional to 19,998.36, 29,953.80 and 12,183.48

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Solution

The fourth proportional to 19,998.36, 29,953.80 and 12,183.48 is: 18,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.36 : 29,953.80 = 12,183.48 : x
  2. Step 2: Convert to fraction form
    19,998.36/29,953.80 = 12,183.48/x
  3. Step 3: Cross multiply
    19,998.36x = 29,953.80 × 12,183.48
  4. Step 4: Simplify right side
    19,998.36x = 364,941,523.22
  5. Step 5: Solve for x
    x = 364,941,523.22/19,998.36
  6. Step 6: Final answer
    x = 18,248.57

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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.