Home / 26,921.70-40,338.12-15,645.39

Finding the Fourth Proportional to 26,921.70, 40,338.12 and 15,645.39

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Solution

The fourth proportional to 26,921.70, 40,338.12 and 15,645.39 is: 23,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,921.70 : 40,338.12 = 15,645.39 : x
  2. Step 2: Convert to fraction form
    26,921.70/40,338.12 = 15,645.39/x
  3. Step 3: Cross multiply
    26,921.70x = 40,338.12 × 15,645.39
  4. Step 4: Simplify right side
    26,921.70x = 631,105,619.27
  5. Step 5: Solve for x
    x = 631,105,619.27/26,921.70
  6. Step 6: Final answer
    x = 23,442.26

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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.