Home / 37,738.73-56,618.30-12,778.78

Finding the Fourth Proportional to 37,738.73, 56,618.30 and 12,778.78

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Solution

The fourth proportional to 37,738.73, 56,618.30 and 12,778.78 is: 19,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,738.73 : 56,618.30 = 12,778.78 : x
  2. Step 2: Convert to fraction form
    37,738.73/56,618.30 = 12,778.78/x
  3. Step 3: Cross multiply
    37,738.73x = 56,618.30 × 12,778.78
  4. Step 4: Simplify right side
    37,738.73x = 723,512,799.67
  5. Step 5: Solve for x
    x = 723,512,799.67/37,738.73
  6. Step 6: Final answer
    x = 19,171.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.