Home / 39,178.08-54,065.97-21,273.09

Finding the Fourth Proportional to 39,178.08, 54,065.97 and 21,273.09

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Solution

The fourth proportional to 39,178.08, 54,065.97 and 21,273.09 is: 29,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.08 : 54,065.97 = 21,273.09 : x
  2. Step 2: Convert to fraction form
    39,178.08/54,065.97 = 21,273.09/x
  3. Step 3: Cross multiply
    39,178.08x = 54,065.97 × 21,273.09
  4. Step 4: Simplify right side
    39,178.08x = 1,150,149,869.05
  5. Step 5: Solve for x
    x = 1,150,149,869.05/39,178.08
  6. Step 6: Final answer
    x = 29,356.97

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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.