Home / 31,310.31-43,209.99-18,571.05

Finding the Fourth Proportional to 31,310.31, 43,209.99 and 18,571.05

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Solution

The fourth proportional to 31,310.31, 43,209.99 and 18,571.05 is: 25,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.31 : 43,209.99 = 18,571.05 : x
  2. Step 2: Convert to fraction form
    31,310.31/43,209.99 = 18,571.05/x
  3. Step 3: Cross multiply
    31,310.31x = 43,209.99 × 18,571.05
  4. Step 4: Simplify right side
    31,310.31x = 802,454,884.79
  5. Step 5: Solve for x
    x = 802,454,884.79/31,310.31
  6. Step 6: Final answer
    x = 25,629.09

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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.