Home / 26,540.78-39,783.24-13,365.47

Finding the Fourth Proportional to 26,540.78, 39,783.24 and 13,365.47

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Solution

The fourth proportional to 26,540.78, 39,783.24 and 13,365.47 is: 20,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,540.78 : 39,783.24 = 13,365.47 : x
  2. Step 2: Convert to fraction form
    26,540.78/39,783.24 = 13,365.47/x
  3. Step 3: Cross multiply
    26,540.78x = 39,783.24 × 13,365.47
  4. Step 4: Simplify right side
    26,540.78x = 531,721,865.30
  5. Step 5: Solve for x
    x = 531,721,865.30/26,540.78
  6. Step 6: Final answer
    x = 20,034.14

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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.