Finding the Fourth Proportional to 40.68, 60.96 and 17.82
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Solution
The fourth proportional to 40.68, 60.96 and 17.82 is: 26.70
Step by Step Solution
- Step 1: Write the proportion equation
40.68 : 60.96 = 17.82 : x - Step 2: Convert to fraction form
40.68/60.96 = 17.82/x - Step 3: Cross multiply
40.68x = 60.96 × 17.82 - Step 4: Simplify right side
40.68x = 1,086.31 - Step 5: Solve for x
x = 1,086.31/40.68 - Step 6: Final answer
x = 26.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.