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Finding the Fourth Proportional to 17,398.80, 26,098.20 and 16,640.40

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Solution

The fourth proportional to 17,398.80, 26,098.20 and 16,640.40 is: 24,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,398.80 : 26,098.20 = 16,640.40 : x
  2. Step 2: Convert to fraction form
    17,398.80/26,098.20 = 16,640.40/x
  3. Step 3: Cross multiply
    17,398.80x = 26,098.20 × 16,640.40
  4. Step 4: Simplify right side
    17,398.80x = 434,284,487.28
  5. Step 5: Solve for x
    x = 434,284,487.28/17,398.80
  6. Step 6: Final answer
    x = 24,960.60

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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.