Home / 20,076.07-30,118.89-6,928.56

Finding the Fourth Proportional to 20,076.07, 30,118.89 and 6,928.56

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Solution

The fourth proportional to 20,076.07, 30,118.89 and 6,928.56 is: 10,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.07 : 30,118.89 = 6,928.56 : x
  2. Step 2: Convert to fraction form
    20,076.07/30,118.89 = 6,928.56/x
  3. Step 3: Cross multiply
    20,076.07x = 30,118.89 × 6,928.56
  4. Step 4: Simplify right side
    20,076.07x = 208,680,385.90
  5. Step 5: Solve for x
    x = 208,680,385.90/20,076.07
  6. Step 6: Final answer
    x = 10,394.48

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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.