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Finding the Fourth Proportional to 26,903.45, 40,361.64 and 8,435.45

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Solution

The fourth proportional to 26,903.45, 40,361.64 and 8,435.45 is: 12,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,903.45 : 40,361.64 = 8,435.45 : x
  2. Step 2: Convert to fraction form
    26,903.45/40,361.64 = 8,435.45/x
  3. Step 3: Cross multiply
    26,903.45x = 40,361.64 × 8,435.45
  4. Step 4: Simplify right side
    26,903.45x = 340,468,394.33
  5. Step 5: Solve for x
    x = 340,468,394.33/26,903.45
  6. Step 6: Final answer
    x = 12,655.20

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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.