Home / 26,438.64-39,664.62-18,662.64

Finding the Fourth Proportional to 26,438.64, 39,664.62 and 18,662.64

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Solution

The fourth proportional to 26,438.64, 39,664.62 and 18,662.64 is: 27,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,438.64 : 39,664.62 = 18,662.64 : x
  2. Step 2: Convert to fraction form
    26,438.64/39,664.62 = 18,662.64/x
  3. Step 3: Cross multiply
    26,438.64x = 39,664.62 × 18,662.64
  4. Step 4: Simplify right side
    26,438.64x = 740,246,523.80
  5. Step 5: Solve for x
    x = 740,246,523.80/26,438.64
  6. Step 6: Final answer
    x = 27,998.66

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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.