Home / 31,382.93-43,308.79-17,235.78

Finding the Fourth Proportional to 31,382.93, 43,308.79 and 17,235.78

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Solution

The fourth proportional to 31,382.93, 43,308.79 and 17,235.78 is: 23,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.93 : 43,308.79 = 17,235.78 : x
  2. Step 2: Convert to fraction form
    31,382.93/43,308.79 = 17,235.78/x
  3. Step 3: Cross multiply
    31,382.93x = 43,308.79 × 17,235.78
  4. Step 4: Simplify right side
    31,382.93x = 746,460,571.01
  5. Step 5: Solve for x
    x = 746,460,571.01/31,382.93
  6. Step 6: Final answer
    x = 23,785.56

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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.