Home / 31,383.80-43,309.63-17,236.65

Finding the Fourth Proportional to 31,383.80, 43,309.63 and 17,236.65

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Solution

The fourth proportional to 31,383.80, 43,309.63 and 17,236.65 is: 23,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,383.80 : 43,309.63 = 17,236.65 : x
  2. Step 2: Convert to fraction form
    31,383.80/43,309.63 = 17,236.65/x
  3. Step 3: Cross multiply
    31,383.80x = 43,309.63 × 17,236.65
  4. Step 4: Simplify right side
    31,383.80x = 746,512,933.94
  5. Step 5: Solve for x
    x = 746,512,933.94/31,383.80
  6. Step 6: Final answer
    x = 23,786.57

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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.