Home / 31,786.52-43,865.74-17,640.68

Finding the Fourth Proportional to 31,786.52, 43,865.74 and 17,640.68

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Solution

The fourth proportional to 31,786.52, 43,865.74 and 17,640.68 is: 24,344.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.52 : 43,865.74 = 17,640.68 : x
  2. Step 2: Convert to fraction form
    31,786.52/43,865.74 = 17,640.68/x
  3. Step 3: Cross multiply
    31,786.52x = 43,865.74 × 17,640.68
  4. Step 4: Simplify right side
    31,786.52x = 773,821,482.30
  5. Step 5: Solve for x
    x = 773,821,482.30/31,786.52
  6. Step 6: Final answer
    x = 24,344.33

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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.