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Finding the Fourth Proportional to 26,950.40, 40,425.60 and 15,286.40

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Solution

The fourth proportional to 26,950.40, 40,425.60 and 15,286.40 is: 22,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,950.40 : 40,425.60 = 15,286.40 : x
  2. Step 2: Convert to fraction form
    26,950.40/40,425.60 = 15,286.40/x
  3. Step 3: Cross multiply
    26,950.40x = 40,425.60 × 15,286.40
  4. Step 4: Simplify right side
    26,950.40x = 617,961,891.84
  5. Step 5: Solve for x
    x = 617,961,891.84/26,950.40
  6. Step 6: Final answer
    x = 22,929.60

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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.