Finding the Fourth Proportional to 40,049.20, 55,269.06 and 21,900.99
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Solution
The fourth proportional to 40,049.20, 55,269.06 and 21,900.99 is: 30,224.00
Step by Step Solution
- Step 1: Write the proportion equation
40,049.20 : 55,269.06 = 21,900.99 : x - Step 2: Convert to fraction form
40,049.20/55,269.06 = 21,900.99/x - Step 3: Cross multiply
40,049.20x = 55,269.06 × 21,900.99 - Step 4: Simplify right side
40,049.20x = 1,210,447,130.37 - Step 5: Solve for x
x = 1,210,447,130.37/40,049.20 - Step 6: Final answer
x = 30,224.00
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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.