Home / 36,912.37-50,938.63-20,996.78

Finding the Fourth Proportional to 36,912.37, 50,938.63 and 20,996.78

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Solution

The fourth proportional to 36,912.37, 50,938.63 and 20,996.78 is: 28,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.37 : 50,938.63 = 20,996.78 : x
  2. Step 2: Convert to fraction form
    36,912.37/50,938.63 = 20,996.78/x
  3. Step 3: Cross multiply
    36,912.37x = 50,938.63 × 20,996.78
  4. Step 4: Simplify right side
    36,912.37x = 1,069,547,273.35
  5. Step 5: Solve for x
    x = 1,069,547,273.35/36,912.37
  6. Step 6: Final answer
    x = 28,975.31

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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.