Home / 37,780.45-52,138.15-20,786.45

Finding the Fourth Proportional to 37,780.45, 52,138.15 and 20,786.45

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Solution

The fourth proportional to 37,780.45, 52,138.15 and 20,786.45 is: 28,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.45 : 52,138.15 = 20,786.45 : x
  2. Step 2: Convert to fraction form
    37,780.45/52,138.15 = 20,786.45/x
  3. Step 3: Cross multiply
    37,780.45x = 52,138.15 × 20,786.45
  4. Step 4: Simplify right side
    37,780.45x = 1,083,766,735.41
  5. Step 5: Solve for x
    x = 1,083,766,735.41/37,780.45
  6. Step 6: Final answer
    x = 28,685.92

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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.