Home / 31,718.66-43,771.32-17,379.64

Finding the Fourth Proportional to 31,718.66, 43,771.32 and 17,379.64

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Solution

The fourth proportional to 31,718.66, 43,771.32 and 17,379.64 is: 23,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.66 : 43,771.32 = 17,379.64 : x
  2. Step 2: Convert to fraction form
    31,718.66/43,771.32 = 17,379.64/x
  3. Step 3: Cross multiply
    31,718.66x = 43,771.32 × 17,379.64
  4. Step 4: Simplify right side
    31,718.66x = 760,729,783.92
  5. Step 5: Solve for x
    x = 760,729,783.92/31,718.66
  6. Step 6: Final answer
    x = 23,983.67

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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.