Home / 36,721.60-50,672.32-20,806

Finding the Fourth Proportional to 36,721.60, 50,672.32 and 20,806

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Solution

The fourth proportional to 36,721.60, 50,672.32 and 20,806 is: 28,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.60 : 50,672.32 = 20,806 : x
  2. Step 2: Convert to fraction form
    36,721.60/50,672.32 = 20,806/x
  3. Step 3: Cross multiply
    36,721.60x = 50,672.32 × 20,806
  4. Step 4: Simplify right side
    36,721.60x = 1,054,288,289.92
  5. Step 5: Solve for x
    x = 1,054,288,289.92/36,721.60
  6. Step 6: Final answer
    x = 28,710.30

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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.