Finding the Fourth Proportional to 26.69, 39.93 and 19.44
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Solution
The fourth proportional to 26.69, 39.93 and 19.44 is: 29.09
Step by Step Solution
- Step 1: Write the proportion equation
26.69 : 39.93 = 19.44 : x - Step 2: Convert to fraction form
26.69/39.93 = 19.44/x - Step 3: Cross multiply
26.69x = 39.93 × 19.44 - Step 4: Simplify right side
26.69x = 776.24 - Step 5: Solve for x
x = 776.24/26.69 - Step 6: Final answer
x = 29.09
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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.