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Finding the Fourth Proportional to 26,863.60, 40,252.20 and 16,985.20

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Solution

The fourth proportional to 26,863.60, 40,252.20 and 16,985.20 is: 25,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,863.60 : 40,252.20 = 16,985.20 : x
  2. Step 2: Convert to fraction form
    26,863.60/40,252.20 = 16,985.20/x
  3. Step 3: Cross multiply
    26,863.60x = 40,252.20 × 16,985.20
  4. Step 4: Simplify right side
    26,863.60x = 683,691,667.44
  5. Step 5: Solve for x
    x = 683,691,667.44/26,863.60
  6. Step 6: Final answer
    x = 25,450.49

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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.