Home / 27,144.69-40,656.89-20,858.43

Finding the Fourth Proportional to 27,144.69, 40,656.89 and 20,858.43

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Solution

The fourth proportional to 27,144.69, 40,656.89 and 20,858.43 is: 31,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,144.69 : 40,656.89 = 20,858.43 : x
  2. Step 2: Convert to fraction form
    27,144.69/40,656.89 = 20,858.43/x
  3. Step 3: Cross multiply
    27,144.69x = 40,656.89 × 20,858.43
  4. Step 4: Simplify right side
    27,144.69x = 848,038,789.79
  5. Step 5: Solve for x
    x = 848,038,789.79/27,144.69
  6. Step 6: Final answer
    x = 31,241.42

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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.