Home / 19,042.22-28,570.19-8,511.38

Finding the Fourth Proportional to 19,042.22, 28,570.19 and 8,511.38

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Solution

The fourth proportional to 19,042.22, 28,570.19 and 8,511.38 is: 12,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.22 : 28,570.19 = 8,511.38 : x
  2. Step 2: Convert to fraction form
    19,042.22/28,570.19 = 8,511.38/x
  3. Step 3: Cross multiply
    19,042.22x = 28,570.19 × 8,511.38
  4. Step 4: Simplify right side
    19,042.22x = 243,171,665.49
  5. Step 5: Solve for x
    x = 243,171,665.49/19,042.22
  6. Step 6: Final answer
    x = 12,770.13

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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.