Home / 36,780.21-50,761.28-20,869.79

Finding the Fourth Proportional to 36,780.21, 50,761.28 and 20,869.79

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Solution

The fourth proportional to 36,780.21, 50,761.28 and 20,869.79 is: 28,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.21 : 50,761.28 = 20,869.79 : x
  2. Step 2: Convert to fraction form
    36,780.21/50,761.28 = 20,869.79/x
  3. Step 3: Cross multiply
    36,780.21x = 50,761.28 × 20,869.79
  4. Step 4: Simplify right side
    36,780.21x = 1,059,377,052.10
  5. Step 5: Solve for x
    x = 1,059,377,052.10/36,780.21
  6. Step 6: Final answer
    x = 28,802.91

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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.