Home / 31,426.39-43,367.79-17,086.51

Finding the Fourth Proportional to 31,426.39, 43,367.79 and 17,086.51

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Solution

The fourth proportional to 31,426.39, 43,367.79 and 17,086.51 is: 23,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.39 : 43,367.79 = 17,086.51 : x
  2. Step 2: Convert to fraction form
    31,426.39/43,367.79 = 17,086.51/x
  3. Step 3: Cross multiply
    31,426.39x = 43,367.79 × 17,086.51
  4. Step 4: Simplify right side
    31,426.39x = 741,004,088.81
  5. Step 5: Solve for x
    x = 741,004,088.81/31,426.39
  6. Step 6: Final answer
    x = 23,579.04

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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.