Home / 36,771.08-50,749.36-20,640.12

Finding the Fourth Proportional to 36,771.08, 50,749.36 and 20,640.12

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Solution

The fourth proportional to 36,771.08, 50,749.36 and 20,640.12 is: 28,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,771.08 : 50,749.36 = 20,640.12 : x
  2. Step 2: Convert to fraction form
    36,771.08/50,749.36 = 20,640.12/x
  3. Step 3: Cross multiply
    36,771.08x = 50,749.36 × 20,640.12
  4. Step 4: Simplify right side
    36,771.08x = 1,047,472,880.32
  5. Step 5: Solve for x
    x = 1,047,472,880.32/36,771.08
  6. Step 6: Final answer
    x = 28,486.32

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Double scale
Find fourth proportional to 36,772.08, 50,750.74 and 20,641.12
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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.