Finding the Fourth Proportional to 26.12, 36.02 and 21.99
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Solution
The fourth proportional to 26.12, 36.02 and 21.99 is: 30.32
Step by Step Solution
- Step 1: Write the proportion equation
26.12 : 36.02 = 21.99 : x - Step 2: Convert to fraction form
26.12/36.02 = 21.99/x - Step 3: Cross multiply
26.12x = 36.02 × 21.99 - Step 4: Simplify right side
26.12x = 791.97 - Step 5: Solve for x
x = 791.97/26.12 - Step 6: Final answer
x = 30.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.