Home / 19,128.66-28,704.33-10,363.38

Finding the Fourth Proportional to 19,128.66, 28,704.33 and 10,363.38

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Solution

The fourth proportional to 19,128.66, 28,704.33 and 10,363.38 is: 15,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.66 : 28,704.33 = 10,363.38 : x
  2. Step 2: Convert to fraction form
    19,128.66/28,704.33 = 10,363.38/x
  3. Step 3: Cross multiply
    19,128.66x = 28,704.33 × 10,363.38
  4. Step 4: Simplify right side
    19,128.66x = 297,473,879.44
  5. Step 5: Solve for x
    x = 297,473,879.44/19,128.66
  6. Step 6: Final answer
    x = 15,551.21

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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.