Home / 31,313.39-43,212.22-17,166.20

Finding the Fourth Proportional to 31,313.39, 43,212.22 and 17,166.20

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Solution

The fourth proportional to 31,313.39, 43,212.22 and 17,166.20 is: 23,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.39 : 43,212.22 = 17,166.20 : x
  2. Step 2: Convert to fraction form
    31,313.39/43,212.22 = 17,166.20/x
  3. Step 3: Cross multiply
    31,313.39x = 43,212.22 × 17,166.20
  4. Step 4: Simplify right side
    31,313.39x = 741,789,351.99
  5. Step 5: Solve for x
    x = 741,789,351.99/31,313.39
  6. Step 6: Final answer
    x = 23,689.21

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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.