Home / 19,173.14-28,801.64-13,661.90

Finding the Fourth Proportional to 19,173.14, 28,801.64 and 13,661.90

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Solution

The fourth proportional to 19,173.14, 28,801.64 and 13,661.90 is: 20,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.14 : 28,801.64 = 13,661.90 : x
  2. Step 2: Convert to fraction form
    19,173.14/28,801.64 = 13,661.90/x
  3. Step 3: Cross multiply
    19,173.14x = 28,801.64 × 13,661.90
  4. Step 4: Simplify right side
    19,173.14x = 393,485,125.52
  5. Step 5: Solve for x
    x = 393,485,125.52/19,173.14
  6. Step 6: Final answer
    x = 20,522.73

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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.