Home / 26,805.61-40,221.51-18,958.55

Finding the Fourth Proportional to 26,805.61, 40,221.51 and 18,958.55

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Solution

The fourth proportional to 26,805.61, 40,221.51 and 18,958.55 is: 28,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,805.61 : 40,221.51 = 18,958.55 : x
  2. Step 2: Convert to fraction form
    26,805.61/40,221.51 = 18,958.55/x
  3. Step 3: Cross multiply
    26,805.61x = 40,221.51 × 18,958.55
  4. Step 4: Simplify right side
    26,805.61x = 762,541,608.96
  5. Step 5: Solve for x
    x = 762,541,608.96/26,805.61
  6. Step 6: Final answer
    x = 28,447.09

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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.