Home / 39,734.55-54,832.39-21,828.43

Finding the Fourth Proportional to 39,734.55, 54,832.39 and 21,828.43

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Solution

The fourth proportional to 39,734.55, 54,832.39 and 21,828.43 is: 30,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,734.55 : 54,832.39 = 21,828.43 : x
  2. Step 2: Convert to fraction form
    39,734.55/54,832.39 = 21,828.43/x
  3. Step 3: Cross multiply
    39,734.55x = 54,832.39 × 21,828.43
  4. Step 4: Simplify right side
    39,734.55x = 1,196,904,986.85
  5. Step 5: Solve for x
    x = 1,196,904,986.85/39,734.55
  6. Step 6: Final answer
    x = 30,122.53

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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.