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Finding the Fourth Proportional to 26,918.42, 40,384.02 and 8,450.42

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Solution

The fourth proportional to 26,918.42, 40,384.02 and 8,450.42 is: 12,677.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,918.42 : 40,384.02 = 8,450.42 : x
  2. Step 2: Convert to fraction form
    26,918.42/40,384.02 = 8,450.42/x
  3. Step 3: Cross multiply
    26,918.42x = 40,384.02 × 8,450.42
  4. Step 4: Simplify right side
    26,918.42x = 341,261,930.29
  5. Step 5: Solve for x
    x = 341,261,930.29/26,918.42
  6. Step 6: Final answer
    x = 12,677.64

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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.