Home / 51,278.97-76,914.81-13,841.18

Finding the Fourth Proportional to 51,278.97, 76,914.81 and 13,841.18

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Solution

The fourth proportional to 51,278.97, 76,914.81 and 13,841.18 is: 20,760.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,278.97 : 76,914.81 = 13,841.18 : x
  2. Step 2: Convert to fraction form
    51,278.97/76,914.81 = 13,841.18/x
  3. Step 3: Cross multiply
    51,278.97x = 76,914.81 × 13,841.18
  4. Step 4: Simplify right side
    51,278.97x = 1,064,591,729.88
  5. Step 5: Solve for x
    x = 1,064,591,729.88/51,278.97
  6. Step 6: Final answer
    x = 20,760.79

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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.