Home / 19,231.76-28,860.60-8,704.64

Finding the Fourth Proportional to 19,231.76, 28,860.60 and 8,704.64

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Solution

The fourth proportional to 19,231.76, 28,860.60 and 8,704.64 is: 13,062.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.76 : 28,860.60 = 8,704.64 : x
  2. Step 2: Convert to fraction form
    19,231.76/28,860.60 = 8,704.64/x
  3. Step 3: Cross multiply
    19,231.76x = 28,860.60 × 8,704.64
  4. Step 4: Simplify right side
    19,231.76x = 251,221,133.18
  5. Step 5: Solve for x
    x = 251,221,133.18/19,231.76
  6. Step 6: Final answer
    x = 13,062.83

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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.