Finding the Third Proportional to 21,642.75 and 27,679.75
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Solution
The third proportional to 21,642.75 and 27,679.75 is: 35,400.70
Step by Step Solution
- Step 1: Write the proportion equation
21,642.75 : 27,679.75 = 27,679.75 : x - Step 2: Convert to fraction form
21,642.75/27,679.75 = 27,679.75/x - Step 3: Cross multiply
21,642.75x = 27,679.75 × 27,679.75 - Step 4: Simplify right side
21,642.75x = 766,168,560.06 - Step 5: Solve for x
x = 766,168,560.06/21,642.75 - Step 6: Final answer
x = 35,400.70
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These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.