Home / 39,785.26-54,903.63-21,880.54

Finding the Fourth Proportional to 39,785.26, 54,903.63 and 21,880.54

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Solution

The fourth proportional to 39,785.26, 54,903.63 and 21,880.54 is: 30,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.26 : 54,903.63 = 21,880.54 : x
  2. Step 2: Convert to fraction form
    39,785.26/54,903.63 = 21,880.54/x
  3. Step 3: Cross multiply
    39,785.26x = 54,903.63 × 21,880.54
  4. Step 4: Simplify right side
    39,785.26x = 1,201,321,072.36
  5. Step 5: Solve for x
    x = 1,201,321,072.36/39,785.26
  6. Step 6: Final answer
    x = 30,195.13

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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.