Finding the Third Proportional to 11,820.75 and 19,347.75
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Solution
The third proportional to 11,820.75 and 19,347.75 is: 31,667.65
Step by Step Solution
- Step 1: Write the proportion equation
11,820.75 : 19,347.75 = 19,347.75 : x - Step 2: Convert to fraction form
11,820.75/19,347.75 = 19,347.75/x - Step 3: Cross multiply
11,820.75x = 19,347.75 × 19,347.75 - Step 4: Simplify right side
11,820.75x = 374,335,430.06 - Step 5: Solve for x
x = 374,335,430.06/11,820.75 - Step 6: Final answer
x = 31,667.65
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Why These Related Problems?
These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.