Home / 31,571.89-43,574.86-18,825.90

Finding the Fourth Proportional to 31,571.89, 43,574.86 and 18,825.90

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Solution

The fourth proportional to 31,571.89, 43,574.86 and 18,825.90 is: 25,983.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,571.89 : 43,574.86 = 18,825.90 : x
  2. Step 2: Convert to fraction form
    31,571.89/43,574.86 = 18,825.90/x
  3. Step 3: Cross multiply
    31,571.89x = 43,574.86 × 18,825.90
  4. Step 4: Simplify right side
    31,571.89x = 820,335,956.87
  5. Step 5: Solve for x
    x = 820,335,956.87/31,571.89
  6. Step 6: Final answer
    x = 25,983.11

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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.