Finding the Fourth Proportional to 40.34, 60.49 and 18.67
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Solution
The fourth proportional to 40.34, 60.49 and 18.67 is: 27.99
Step by Step Solution
- Step 1: Write the proportion equation
40.34 : 60.49 = 18.67 : x - Step 2: Convert to fraction form
40.34/60.49 = 18.67/x - Step 3: Cross multiply
40.34x = 60.49 × 18.67 - Step 4: Simplify right side
40.34x = 1,129.15 - Step 5: Solve for x
x = 1,129.15/40.34 - Step 6: Final answer
x = 27.99
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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.