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Finding the Fourth Proportional to 26,849.80, 40,235.10 and 19,469.80

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Solution

The fourth proportional to 26,849.80, 40,235.10 and 19,469.80 is: 29,175.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,849.80 : 40,235.10 = 19,469.80 : x
  2. Step 2: Convert to fraction form
    26,849.80/40,235.10 = 19,469.80/x
  3. Step 3: Cross multiply
    26,849.80x = 40,235.10 × 19,469.80
  4. Step 4: Simplify right side
    26,849.80x = 783,369,349.98
  5. Step 5: Solve for x
    x = 783,369,349.98/26,849.80
  6. Step 6: Final answer
    x = 29,175.98

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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.