Finding the Fourth Proportional to 40,518.37, 55,913.88 and 22,368.70
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Solution
The fourth proportional to 40,518.37, 55,913.88 and 22,368.70 is: 30,867.99
Step by Step Solution
- Step 1: Write the proportion equation
40,518.37 : 55,913.88 = 22,368.70 : x - Step 2: Convert to fraction form
40,518.37/55,913.88 = 22,368.70/x - Step 3: Cross multiply
40,518.37x = 55,913.88 × 22,368.70 - Step 4: Simplify right side
40,518.37x = 1,250,720,807.56 - Step 5: Solve for x
x = 1,250,720,807.56/40,518.37 - Step 6: Final answer
x = 30,867.99
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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.