Home / 31,313.31-43,212.21-16,973.09

Finding the Fourth Proportional to 31,313.31, 43,212.21 and 16,973.09

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Solution

The fourth proportional to 31,313.31, 43,212.21 and 16,973.09 is: 23,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.31 : 43,212.21 = 16,973.09 : x
  2. Step 2: Convert to fraction form
    31,313.31/43,212.21 = 16,973.09/x
  3. Step 3: Cross multiply
    31,313.31x = 43,212.21 × 16,973.09
  4. Step 4: Simplify right side
    31,313.31x = 733,444,537.97
  5. Step 5: Solve for x
    x = 733,444,537.97/31,313.31
  6. Step 6: Final answer
    x = 23,422.77

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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.