Home / 39,817.86-54,946.44-21,909.96

Finding the Fourth Proportional to 39,817.86, 54,946.44 and 21,909.96

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Solution

The fourth proportional to 39,817.86, 54,946.44 and 21,909.96 is: 30,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,817.86 : 54,946.44 = 21,909.96 : x
  2. Step 2: Convert to fraction form
    39,817.86/54,946.44 = 21,909.96/x
  3. Step 3: Cross multiply
    39,817.86x = 54,946.44 × 21,909.96
  4. Step 4: Simplify right side
    39,817.86x = 1,203,874,302.54
  5. Step 5: Solve for x
    x = 1,203,874,302.54/39,817.86
  6. Step 6: Final answer
    x = 30,234.53

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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.