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Finding the Fourth Proportional to 27,305.80, 40,893.90 and 16,808.20

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Solution

The fourth proportional to 27,305.80, 40,893.90 and 16,808.20 is: 25,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,305.80 : 40,893.90 = 16,808.20 : x
  2. Step 2: Convert to fraction form
    27,305.80/40,893.90 = 16,808.20/x
  3. Step 3: Cross multiply
    27,305.80x = 40,893.90 × 16,808.20
  4. Step 4: Simplify right side
    27,305.80x = 687,352,849.98
  5. Step 5: Solve for x
    x = 687,352,849.98/27,305.80
  6. Step 6: Final answer
    x = 25,172.41

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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.