Home / 37,780.46-52,137.15-20,786.45

Finding the Fourth Proportional to 37,780.46, 52,137.15 and 20,786.45

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Solution

The fourth proportional to 37,780.46, 52,137.15 and 20,786.45 is: 28,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.46 : 52,137.15 = 20,786.45 : x
  2. Step 2: Convert to fraction form
    37,780.46/52,137.15 = 20,786.45/x
  3. Step 3: Cross multiply
    37,780.46x = 52,137.15 × 20,786.45
  4. Step 4: Simplify right side
    37,780.46x = 1,083,745,922.98
  5. Step 5: Solve for x
    x = 1,083,745,922.98/37,780.46
  6. Step 6: Final answer
    x = 28,685.36

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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.