Home / 19,315.75-28,976.10-5,464.75

Finding the Fourth Proportional to 19,315.75, 28,976.10 and 5,464.75

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Solution

The fourth proportional to 19,315.75, 28,976.10 and 5,464.75 is: 8,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.75 : 28,976.10 = 5,464.75 : x
  2. Step 2: Convert to fraction form
    19,315.75/28,976.10 = 5,464.75/x
  3. Step 3: Cross multiply
    19,315.75x = 28,976.10 × 5,464.75
  4. Step 4: Simplify right side
    19,315.75x = 158,347,142.48
  5. Step 5: Solve for x
    x = 158,347,142.48/19,315.75
  6. Step 6: Final answer
    x = 8,197.83

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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.