Home / 39,396.38-54,367.97-21,493.08

Finding the Fourth Proportional to 39,396.38, 54,367.97 and 21,493.08

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Solution

The fourth proportional to 39,396.38, 54,367.97 and 21,493.08 is: 29,660.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396.38 : 54,367.97 = 21,493.08 : x
  2. Step 2: Convert to fraction form
    39,396.38/54,367.97 = 21,493.08/x
  3. Step 3: Cross multiply
    39,396.38x = 54,367.97 × 21,493.08
  4. Step 4: Simplify right side
    39,396.38x = 1,168,535,021.18
  5. Step 5: Solve for x
    x = 1,168,535,021.18/39,396.38
  6. Step 6: Final answer
    x = 29,660.98

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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.