Home / 26,316.55-39,481.31-18,540.55

Finding the Fourth Proportional to 26,316.55, 39,481.31 and 18,540.55

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Solution

The fourth proportional to 26,316.55, 39,481.31 and 18,540.55 is: 27,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,316.55 : 39,481.31 = 18,540.55 : x
  2. Step 2: Convert to fraction form
    26,316.55/39,481.31 = 18,540.55/x
  3. Step 3: Cross multiply
    26,316.55x = 39,481.31 × 18,540.55
  4. Step 4: Simplify right side
    26,316.55x = 732,005,202.12
  5. Step 5: Solve for x
    x = 732,005,202.12/26,316.55
  6. Step 6: Final answer
    x = 27,815.39

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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.