Finding the Fourth Proportional to 26,319.87, 39,435.26 and 15,909.75
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Solution
The fourth proportional to 26,319.87, 39,435.26 and 15,909.75 is: 23,837.70
Step by Step Solution
- Step 1: Write the proportion equation
26,319.87 : 39,435.26 = 15,909.75 : x - Step 2: Convert to fraction form
26,319.87/39,435.26 = 15,909.75/x - Step 3: Cross multiply
26,319.87x = 39,435.26 × 15,909.75 - Step 4: Simplify right side
26,319.87x = 627,405,048.24 - Step 5: Solve for x
x = 627,405,048.24/26,319.87 - Step 6: Final answer
x = 23,837.70
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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.