Home / 51,215.94-76,830.39-20,047.14

Finding the Fourth Proportional to 51,215.94, 76,830.39 and 20,047.14

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Solution

The fourth proportional to 51,215.94, 76,830.39 and 20,047.14 is: 30,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,215.94 : 76,830.39 = 20,047.14 : x
  2. Step 2: Convert to fraction form
    51,215.94/76,830.39 = 20,047.14/x
  3. Step 3: Cross multiply
    51,215.94x = 76,830.39 × 20,047.14
  4. Step 4: Simplify right side
    51,215.94x = 1,540,229,584.58
  5. Step 5: Solve for x
    x = 1,540,229,584.58/51,215.94
  6. Step 6: Final answer
    x = 30,073.25

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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.