Home / 39,764.28-54,874.44-21,858.84

Finding the Fourth Proportional to 39,764.28, 54,874.44 and 21,858.84

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Solution

The fourth proportional to 39,764.28, 54,874.44 and 21,858.84 is: 30,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764.28 : 54,874.44 = 21,858.84 : x
  2. Step 2: Convert to fraction form
    39,764.28/54,874.44 = 21,858.84/x
  3. Step 3: Cross multiply
    39,764.28x = 54,874.44 × 21,858.84
  4. Step 4: Simplify right side
    39,764.28x = 1,199,491,604.05
  5. Step 5: Solve for x
    x = 1,199,491,604.05/39,764.28
  6. Step 6: Final answer
    x = 30,165.05

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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.