Home / 31,617.03-43,640.19-19,673.25

Finding the Fourth Proportional to 31,617.03, 43,640.19 and 19,673.25

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Solution

The fourth proportional to 31,617.03, 43,640.19 and 19,673.25 is: 27,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.03 : 43,640.19 = 19,673.25 : x
  2. Step 2: Convert to fraction form
    31,617.03/43,640.19 = 19,673.25/x
  3. Step 3: Cross multiply
    31,617.03x = 43,640.19 × 19,673.25
  4. Step 4: Simplify right side
    31,617.03x = 858,544,367.92
  5. Step 5: Solve for x
    x = 858,544,367.92/31,617.03
  6. Step 6: Final answer
    x = 27,154.49

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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.