Finding the Fourth Proportional to 19,508.23, 29,212.93 and 13,996.99
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Solution
The fourth proportional to 19,508.23, 29,212.93 and 13,996.99 is: 20,960.03
Step by Step Solution
- Step 1: Write the proportion equation
19,508.23 : 29,212.93 = 13,996.99 : x - Step 2: Convert to fraction form
19,508.23/29,212.93 = 13,996.99/x - Step 3: Cross multiply
19,508.23x = 29,212.93 × 13,996.99 - Step 4: Simplify right side
19,508.23x = 408,893,089.08 - Step 5: Solve for x
x = 408,893,089.08/19,508.23 - Step 6: Final answer
x = 20,960.03
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1.5x scale
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.