Home / 37,131.54-55,708.80-12,171.78

Finding the Fourth Proportional to 37,131.54, 55,708.80 and 12,171.78

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Solution

The fourth proportional to 37,131.54, 55,708.80 and 12,171.78 is: 18,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,131.54 : 55,708.80 = 12,171.78 : x
  2. Step 2: Convert to fraction form
    37,131.54/55,708.80 = 12,171.78/x
  3. Step 3: Cross multiply
    37,131.54x = 55,708.80 × 12,171.78
  4. Step 4: Simplify right side
    37,131.54x = 678,075,257.66
  5. Step 5: Solve for x
    x = 678,075,257.66/37,131.54
  6. Step 6: Final answer
    x = 18,261.44

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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.