Home / 31,802.94-43,889.58-18,375.98

Finding the Fourth Proportional to 31,802.94, 43,889.58 and 18,375.98

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Solution

The fourth proportional to 31,802.94, 43,889.58 and 18,375.98 is: 25,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.94 : 43,889.58 = 18,375.98 : x
  2. Step 2: Convert to fraction form
    31,802.94/43,889.58 = 18,375.98/x
  3. Step 3: Cross multiply
    31,802.94x = 43,889.58 × 18,375.98
  4. Step 4: Simplify right side
    31,802.94x = 806,513,824.84
  5. Step 5: Solve for x
    x = 806,513,824.84/31,802.94
  6. Step 6: Final answer
    x = 25,359.73

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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.