Home / 31,653.28-43,682.24-18,222.37

Finding the Fourth Proportional to 31,653.28, 43,682.24 and 18,222.37

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Solution

The fourth proportional to 31,653.28, 43,682.24 and 18,222.37 is: 25,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.28 : 43,682.24 = 18,222.37 : x
  2. Step 2: Convert to fraction form
    31,653.28/43,682.24 = 18,222.37/x
  3. Step 3: Cross multiply
    31,653.28x = 43,682.24 × 18,222.37
  4. Step 4: Simplify right side
    31,653.28x = 795,993,773.56
  5. Step 5: Solve for x
    x = 795,993,773.56/31,653.28
  6. Step 6: Final answer
    x = 25,147.28

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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.