Home / 31,313.88-43,213.59-17,165.79

Finding the Fourth Proportional to 31,313.88, 43,213.59 and 17,165.79

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Solution

The fourth proportional to 31,313.88, 43,213.59 and 17,165.79 is: 23,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.88 : 43,213.59 = 17,165.79 : x
  2. Step 2: Convert to fraction form
    31,313.88/43,213.59 = 17,165.79/x
  3. Step 3: Cross multiply
    31,313.88x = 43,213.59 × 17,165.79
  4. Step 4: Simplify right side
    31,313.88x = 741,795,411.09
  5. Step 5: Solve for x
    x = 741,795,411.09/31,313.88
  6. Step 6: Final answer
    x = 23,689.03

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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.