Home / 18,790.45-25,871.81-15,951.94

Finding the Fourth Proportional to 18,790.45, 25,871.81 and 15,951.94

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Solution

The fourth proportional to 18,790.45, 25,871.81 and 15,951.94 is: 21,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.45 : 25,871.81 = 15,951.94 : x
  2. Step 2: Convert to fraction form
    18,790.45/25,871.81 = 15,951.94/x
  3. Step 3: Cross multiply
    18,790.45x = 25,871.81 × 15,951.94
  4. Step 4: Simplify right side
    18,790.45x = 412,705,416.37
  5. Step 5: Solve for x
    x = 412,705,416.37/18,790.45
  6. Step 6: Final answer
    x = 21,963.58

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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.