Home / 31,739.57-43,800.27-18,310.67

Finding the Fourth Proportional to 31,739.57, 43,800.27 and 18,310.67

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Solution

The fourth proportional to 31,739.57, 43,800.27 and 18,310.67 is: 25,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.57 : 43,800.27 = 18,310.67 : x
  2. Step 2: Convert to fraction form
    31,739.57/43,800.27 = 18,310.67/x
  3. Step 3: Cross multiply
    31,739.57x = 43,800.27 × 18,310.67
  4. Step 4: Simplify right side
    31,739.57x = 802,012,289.88
  5. Step 5: Solve for x
    x = 802,012,289.88/31,739.57
  6. Step 6: Final answer
    x = 25,268.53

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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.