Home / 19,135.69-28,698.91-8,042.54

Finding the Fourth Proportional to 19,135.69, 28,698.91 and 8,042.54

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Solution

The fourth proportional to 19,135.69, 28,698.91 and 8,042.54 is: 12,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.69 : 28,698.91 = 8,042.54 : x
  2. Step 2: Convert to fraction form
    19,135.69/28,698.91 = 8,042.54/x
  3. Step 3: Cross multiply
    19,135.69x = 28,698.91 × 8,042.54
  4. Step 4: Simplify right side
    19,135.69x = 230,811,968.03
  5. Step 5: Solve for x
    x = 230,811,968.03/19,135.69
  6. Step 6: Final answer
    x = 12,061.86

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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.