Finding the Third Proportional to 18,111.75 and 38,403.75
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Solution
The third proportional to 18,111.75 and 38,403.75 is: 81,430.45
Step by Step Solution
- Step 1: Write the proportion equation
18,111.75 : 38,403.75 = 38,403.75 : x - Step 2: Convert to fraction form
18,111.75/38,403.75 = 38,403.75/x - Step 3: Cross multiply
18,111.75x = 38,403.75 × 38,403.75 - Step 4: Simplify right side
18,111.75x = 1,474,848,014.06 - Step 5: Solve for x
x = 1,474,848,014.06/18,111.75 - Step 6: Final answer
x = 81,430.45
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.