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Finding the Fourth Proportional to 19,285.08, 28,934.22 and 8,889

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Solution

The fourth proportional to 19,285.08, 28,934.22 and 8,889 is: 13,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.08 : 28,934.22 = 8,889 : x
  2. Step 2: Convert to fraction form
    19,285.08/28,934.22 = 8,889/x
  3. Step 3: Cross multiply
    19,285.08x = 28,934.22 × 8,889
  4. Step 4: Simplify right side
    19,285.08x = 257,196,281.58
  5. Step 5: Solve for x
    x = 257,196,281.58/19,285.08
  6. Step 6: Final answer
    x = 13,336.54

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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.