Finding the Fourth Proportional to 29.34, 40.28 and 27.99
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Solution
The fourth proportional to 29.34, 40.28 and 27.99 is: 38.42
Step by Step Solution
- Step 1: Write the proportion equation
29.34 : 40.28 = 27.99 : x - Step 2: Convert to fraction form
29.34/40.28 = 27.99/x - Step 3: Cross multiply
29.34x = 40.28 × 27.99 - Step 4: Simplify right side
29.34x = 1,127.30 - Step 5: Solve for x
x = 1,127.30/29.34 - Step 6: Final answer
x = 38.42
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.