Finding the Fourth Proportional to 15,406.89, 22,992.33 and 13,745.99
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Solution
The fourth proportional to 15,406.89, 22,992.33 and 13,745.99 is: 20,513.69
Step by Step Solution
- Step 1: Write the proportion equation
15,406.89 : 22,992.33 = 13,745.99 : x - Step 2: Convert to fraction form
15,406.89/22,992.33 = 13,745.99/x - Step 3: Cross multiply
15,406.89x = 22,992.33 × 13,745.99 - Step 4: Simplify right side
15,406.89x = 316,052,223.30 - Step 5: Solve for x
x = 316,052,223.30/15,406.89 - Step 6: Final answer
x = 20,513.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.