Home / 36,693.06-50,636.61-20,780.61

Finding the Fourth Proportional to 36,693.06, 50,636.61 and 20,780.61

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Solution

The fourth proportional to 36,693.06, 50,636.61 and 20,780.61 is: 28,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,693.06 : 50,636.61 = 20,780.61 : x
  2. Step 2: Convert to fraction form
    36,693.06/50,636.61 = 20,780.61/x
  3. Step 3: Cross multiply
    36,693.06x = 50,636.61 × 20,780.61
  4. Step 4: Simplify right side
    36,693.06x = 1,052,259,644.13
  5. Step 5: Solve for x
    x = 1,052,259,644.13/36,693.06
  6. Step 6: Final answer
    x = 28,677.35

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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.