Finding the Third Proportional to 17,187.19 and 18,807.19
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Solution
The third proportional to 17,187.19 and 18,807.19 is: 20,579.88
Step by Step Solution
- Step 1: Write the proportion equation
17,187.19 : 18,807.19 = 18,807.19 : x - Step 2: Convert to fraction form
17,187.19/18,807.19 = 18,807.19/x - Step 3: Cross multiply
17,187.19x = 18,807.19 × 18,807.19 - Step 4: Simplify right side
17,187.19x = 353,710,301.66 - Step 5: Solve for x
x = 353,710,301.66/17,187.19 - Step 6: Final answer
x = 20,579.88
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Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.