Home / 36,036.28-49,735.05-20,121.76

Finding the Fourth Proportional to 36,036.28, 49,735.05 and 20,121.76

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Solution

The fourth proportional to 36,036.28, 49,735.05 and 20,121.76 is: 27,770.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,036.28 : 49,735.05 = 20,121.76 : x
  2. Step 2: Convert to fraction form
    36,036.28/49,735.05 = 20,121.76/x
  3. Step 3: Cross multiply
    36,036.28x = 49,735.05 × 20,121.76
  4. Step 4: Simplify right side
    36,036.28x = 1,000,756,739.69
  5. Step 5: Solve for x
    x = 1,000,756,739.69/36,036.28
  6. Step 6: Final answer
    x = 27,770.81

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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.