Home / 39,294.78-58,942.32-20,580.33

Finding the Fourth Proportional to 39,294.78, 58,942.32 and 20,580.33

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Solution

The fourth proportional to 39,294.78, 58,942.32 and 20,580.33 is: 30,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,294.78 : 58,942.32 = 20,580.33 : x
  2. Step 2: Convert to fraction form
    39,294.78/58,942.32 = 20,580.33/x
  3. Step 3: Cross multiply
    39,294.78x = 58,942.32 × 20,580.33
  4. Step 4: Simplify right side
    39,294.78x = 1,213,052,396.57
  5. Step 5: Solve for x
    x = 1,213,052,396.57/39,294.78
  6. Step 6: Final answer
    x = 30,870.57

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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.