Finding the Fourth Proportional to 23,192.12, 31,990.56 and 13,754
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Solution
The fourth proportional to 23,192.12, 31,990.56 and 13,754 is: 18,971.88
Step by Step Solution
- Step 1: Write the proportion equation
23,192.12 : 31,990.56 = 13,754 : x - Step 2: Convert to fraction form
23,192.12/31,990.56 = 13,754/x - Step 3: Cross multiply
23,192.12x = 31,990.56 × 13,754 - Step 4: Simplify right side
23,192.12x = 439,998,162.24 - Step 5: Solve for x
x = 439,998,162.24/23,192.12 - Step 6: Final answer
x = 18,971.88
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1.5x scale
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.