Home / 36,385.89-54,477.60-18,578.09

Finding the Fourth Proportional to 36,385.89, 54,477.60 and 18,578.09

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Solution

The fourth proportional to 36,385.89, 54,477.60 and 18,578.09 is: 27,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,385.89 : 54,477.60 = 18,578.09 : x
  2. Step 2: Convert to fraction form
    36,385.89/54,477.60 = 18,578.09/x
  3. Step 3: Cross multiply
    36,385.89x = 54,477.60 × 18,578.09
  4. Step 4: Simplify right side
    36,385.89x = 1,012,089,483.40
  5. Step 5: Solve for x
    x = 1,012,089,483.40/36,385.89
  6. Step 6: Final answer
    x = 27,815.44

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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.