Home / 36,821.69-55,181.05-19,918.21

Finding the Fourth Proportional to 36,821.69, 55,181.05 and 19,918.21

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Solution

The fourth proportional to 36,821.69, 55,181.05 and 19,918.21 is: 29,849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.69 : 55,181.05 = 19,918.21 : x
  2. Step 2: Convert to fraction form
    36,821.69/55,181.05 = 19,918.21/x
  3. Step 3: Cross multiply
    36,821.69x = 55,181.05 × 19,918.21
  4. Step 4: Simplify right side
    36,821.69x = 1,099,107,642.33
  5. Step 5: Solve for x
    x = 1,099,107,642.33/36,821.69
  6. Step 6: Final answer
    x = 29,849.46

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1.5x scale

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.