Home / 31,091.10-46,619.55-21,241.50

Finding the Fourth Proportional to 31,091.10, 46,619.55 and 21,241.50

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Solution

The fourth proportional to 31,091.10, 46,619.55 and 21,241.50 is: 31,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,091.10 : 46,619.55 = 21,241.50 : x
  2. Step 2: Convert to fraction form
    31,091.10/46,619.55 = 21,241.50/x
  3. Step 3: Cross multiply
    31,091.10x = 46,619.55 × 21,241.50
  4. Step 4: Simplify right side
    31,091.10x = 990,269,171.33
  5. Step 5: Solve for x
    x = 990,269,171.33/31,091.10
  6. Step 6: Final answer
    x = 31,850.57

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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.