Home / 19,183.64-28,729.02-15,872.36

Finding the Fourth Proportional to 19,183.64, 28,729.02 and 15,872.36

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Solution

The fourth proportional to 19,183.64, 28,729.02 and 15,872.36 is: 23,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.64 : 28,729.02 = 15,872.36 : x
  2. Step 2: Convert to fraction form
    19,183.64/28,729.02 = 15,872.36/x
  3. Step 3: Cross multiply
    19,183.64x = 28,729.02 × 15,872.36
  4. Step 4: Simplify right side
    19,183.64x = 455,997,347.89
  5. Step 5: Solve for x
    x = 455,997,347.89/19,183.64
  6. Step 6: Final answer
    x = 23,770.12

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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.