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Finding the Fourth Proportional to 19,108.60, 28,662.90 and 17,067.40

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Solution

The fourth proportional to 19,108.60, 28,662.90 and 17,067.40 is: 25,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.60 : 28,662.90 = 17,067.40 : x
  2. Step 2: Convert to fraction form
    19,108.60/28,662.90 = 17,067.40/x
  3. Step 3: Cross multiply
    19,108.60x = 28,662.90 × 17,067.40
  4. Step 4: Simplify right side
    19,108.60x = 489,201,179.46
  5. Step 5: Solve for x
    x = 489,201,179.46/19,108.60
  6. Step 6: Final answer
    x = 25,601.10

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1.5x scale

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.