Home / 41,135.04-61,676.96-18,920

Finding the Fourth Proportional to 41,135.04, 61,676.96 and 18,920

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Solution

The fourth proportional to 41,135.04, 61,676.96 and 18,920 is: 28,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,135.04 : 61,676.96 = 18,920 : x
  2. Step 2: Convert to fraction form
    41,135.04/61,676.96 = 18,920/x
  3. Step 3: Cross multiply
    41,135.04x = 61,676.96 × 18,920
  4. Step 4: Simplify right side
    41,135.04x = 1,166,928,083.20
  5. Step 5: Solve for x
    x = 1,166,928,083.20/41,135.04
  6. Step 6: Final answer
    x = 28,368.23

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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.