Home / 31,661.76-43,693.26-17,515.56

Finding the Fourth Proportional to 31,661.76, 43,693.26 and 17,515.56

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Solution

The fourth proportional to 31,661.76, 43,693.26 and 17,515.56 is: 24,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.76 : 43,693.26 = 17,515.56 : x
  2. Step 2: Convert to fraction form
    31,661.76/43,693.26 = 17,515.56/x
  3. Step 3: Cross multiply
    31,661.76x = 43,693.26 × 17,515.56
  4. Step 4: Simplify right side
    31,661.76x = 765,311,917.13
  5. Step 5: Solve for x
    x = 765,311,917.13/31,661.76
  6. Step 6: Final answer
    x = 24,171.49

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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.