Home / 39,797.02-54,919.49-21,892.05

Finding the Fourth Proportional to 39,797.02, 54,919.49 and 21,892.05

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Solution

The fourth proportional to 39,797.02, 54,919.49 and 21,892.05 is: 30,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,797.02 : 54,919.49 = 21,892.05 : x
  2. Step 2: Convert to fraction form
    39,797.02/54,919.49 = 21,892.05/x
  3. Step 3: Cross multiply
    39,797.02x = 54,919.49 × 21,892.05
  4. Step 4: Simplify right side
    39,797.02x = 1,202,300,141.85
  5. Step 5: Solve for x
    x = 1,202,300,141.85/39,797.02
  6. Step 6: Final answer
    x = 30,210.81

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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.