Finding the Fourth Proportional to 29,381.24, 40,531.08 and 18,759.70
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Solution
The fourth proportional to 29,381.24, 40,531.08 and 18,759.70 is: 25,878.79
Step by Step Solution
- Step 1: Write the proportion equation
29,381.24 : 40,531.08 = 18,759.70 : x - Step 2: Convert to fraction form
29,381.24/40,531.08 = 18,759.70/x - Step 3: Cross multiply
29,381.24x = 40,531.08 × 18,759.70 - Step 4: Simplify right side
29,381.24x = 760,350,901.48 - Step 5: Solve for x
x = 760,350,901.48/29,381.24 - Step 6: Final answer
x = 25,878.79
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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.