Home / 39,766.23-54,877.43-21,861.54

Finding the Fourth Proportional to 39,766.23, 54,877.43 and 21,861.54

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Solution

The fourth proportional to 39,766.23, 54,877.43 and 21,861.54 is: 30,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.23 : 54,877.43 = 21,861.54 : x
  2. Step 2: Convert to fraction form
    39,766.23/54,877.43 = 21,861.54/x
  3. Step 3: Cross multiply
    39,766.23x = 54,877.43 × 21,861.54
  4. Step 4: Simplify right side
    39,766.23x = 1,199,705,185.70
  5. Step 5: Solve for x
    x = 1,199,705,185.70/39,766.23
  6. Step 6: Final answer
    x = 30,168.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.