Finding the Fourth Proportional to 17.70, 26.65 and 16.93
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Solution
The fourth proportional to 17.70, 26.65 and 16.93 is: 25.50
Step by Step Solution
- Step 1: Write the proportion equation
17.70 : 26.65 = 16.93 : x - Step 2: Convert to fraction form
17.70/26.65 = 16.93/x - Step 3: Cross multiply
17.70x = 26.65 × 16.93 - Step 4: Simplify right side
17.70x = 451.24 - Step 5: Solve for x
x = 451.24/17.70 - Step 6: Final answer
x = 25.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.