Home / 20,756.94-31,137.33-8,273.94

Finding the Fourth Proportional to 20,756.94, 31,137.33 and 8,273.94

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Solution

The fourth proportional to 20,756.94, 31,137.33 and 8,273.94 is: 12,411.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756.94 : 31,137.33 = 8,273.94 : x
  2. Step 2: Convert to fraction form
    20,756.94/31,137.33 = 8,273.94/x
  3. Step 3: Cross multiply
    20,756.94x = 31,137.33 × 8,273.94
  4. Step 4: Simplify right side
    20,756.94x = 257,628,400.18
  5. Step 5: Solve for x
    x = 257,628,400.18/20,756.94
  6. Step 6: Final answer
    x = 12,411.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.