Home / 31,571.15-43,573.79-18,825.12

Finding the Fourth Proportional to 31,571.15, 43,573.79 and 18,825.12

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Solution

The fourth proportional to 31,571.15, 43,573.79 and 18,825.12 is: 25,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,571.15 : 43,573.79 = 18,825.12 : x
  2. Step 2: Convert to fraction form
    31,571.15/43,573.79 = 18,825.12/x
  3. Step 3: Cross multiply
    31,571.15x = 43,573.79 × 18,825.12
  4. Step 4: Simplify right side
    31,571.15x = 820,281,872.67
  5. Step 5: Solve for x
    x = 820,281,872.67/31,571.15
  6. Step 6: Final answer
    x = 25,982.01

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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.