Finding the Third Proportional to 18,987.75 and 27,745.88
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Solution
The third proportional to 18,987.75 and 27,745.88 is: 40,543.70
Step by Step Solution
- Step 1: Write the proportion equation
18,987.75 : 27,745.88 = 27,745.88 : x - Step 2: Convert to fraction form
18,987.75/27,745.88 = 27,745.88/x - Step 3: Cross multiply
18,987.75x = 27,745.88 × 27,745.88 - Step 4: Simplify right side
18,987.75x = 769,833,579.52 - Step 5: Solve for x
x = 769,833,579.52/18,987.75 - Step 6: Final answer
x = 40,543.70
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Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.