Finding the Third Proportional to 21,172 and 27,840
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Solution
The third proportional to 21,172 and 27,840 is: 36,608.05
Step by Step Solution
- Step 1: Write the proportion equation
21,172 : 27,840 = 27,840 : x - Step 2: Convert to fraction form
21,172/27,840 = 27,840/x - Step 3: Cross multiply
21,172x = 27,840 × 27,840 - Step 4: Simplify right side
21,172x = 775,065,600 - Step 5: Solve for x
x = 775,065,600/21,172 - Step 6: Final answer
x = 36,608.05
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These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.