Home / 39,399.27-54,369.92-21,494.27

Finding the Fourth Proportional to 39,399.27, 54,369.92 and 21,494.27

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Solution

The fourth proportional to 39,399.27, 54,369.92 and 21,494.27 is: 29,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,399.27 : 54,369.92 = 21,494.27 : x
  2. Step 2: Convert to fraction form
    39,399.27/54,369.92 = 21,494.27/x
  3. Step 3: Cross multiply
    39,399.27x = 54,369.92 × 21,494.27
  4. Step 4: Simplify right side
    39,399.27x = 1,168,641,740.36
  5. Step 5: Solve for x
    x = 1,168,641,740.36/39,399.27
  6. Step 6: Final answer
    x = 29,661.51

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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.