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Finding the Fourth Proportional to 26,770.80, 40,156.20 and 8,300.40

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Solution

The fourth proportional to 26,770.80, 40,156.20 and 8,300.40 is: 12,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,770.80 : 40,156.20 = 8,300.40 : x
  2. Step 2: Convert to fraction form
    26,770.80/40,156.20 = 8,300.40/x
  3. Step 3: Cross multiply
    26,770.80x = 40,156.20 × 8,300.40
  4. Step 4: Simplify right side
    26,770.80x = 333,312,522.48
  5. Step 5: Solve for x
    x = 333,312,522.48/26,770.80
  6. Step 6: Final answer
    x = 12,450.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.