Finding the Fourth Proportional to 37,767.36, 52,118.28 and 21,000
Calculator
Solution
The fourth proportional to 37,767.36, 52,118.28 and 21,000 is: 28,979.62
Step by Step Solution
- Step 1: Write the proportion equation
37,767.36 : 52,118.28 = 21,000 : x - Step 2: Convert to fraction form
37,767.36/52,118.28 = 21,000/x - Step 3: Cross multiply
37,767.36x = 52,118.28 × 21,000 - Step 4: Simplify right side
37,767.36x = 1,094,483,880 - Step 5: Solve for x
x = 1,094,483,880/37,767.36 - Step 6: Final answer
x = 28,979.62
Related Problems
Find fourth proportional to 18,883.68, 26,059.14 and 10,500
Half scale
Find fourth proportional to 75,534.72, 104,236.56 and 42,000
Double scale
Find fourth proportional to 37,768.36, 52,119.66 and 21,001
Similar ratio
Find fourth proportional to 56,651.04, 78,177.42 and 31,500
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.