Home / 36,072.08-49,768.50-20,961.80

Finding the Fourth Proportional to 36,072.08, 49,768.50 and 20,961.80

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Solution

The fourth proportional to 36,072.08, 49,768.50 and 20,961.80 is: 28,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,072.08 : 49,768.50 = 20,961.80 : x
  2. Step 2: Convert to fraction form
    36,072.08/49,768.50 = 20,961.80/x
  3. Step 3: Cross multiply
    36,072.08x = 49,768.50 × 20,961.80
  4. Step 4: Simplify right side
    36,072.08x = 1,043,237,343.30
  5. Step 5: Solve for x
    x = 1,043,237,343.30/36,072.08
  6. Step 6: Final answer
    x = 28,920.91

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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.