Home / 36,828.68-50,829.93-20,912.78

Finding the Fourth Proportional to 36,828.68, 50,829.93 and 20,912.78

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Solution

The fourth proportional to 36,828.68, 50,829.93 and 20,912.78 is: 28,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,828.68 : 50,829.93 = 20,912.78 : x
  2. Step 2: Convert to fraction form
    36,828.68/50,829.93 = 20,912.78/x
  3. Step 3: Cross multiply
    36,828.68x = 50,829.93 × 20,912.78
  4. Step 4: Simplify right side
    36,828.68x = 1,062,995,270.58
  5. Step 5: Solve for x
    x = 1,062,995,270.58/36,828.68
  6. Step 6: Final answer
    x = 28,863.25

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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.