Home / 20,623.16-30,890.82-10,076.96

Finding the Fourth Proportional to 20,623.16, 30,890.82 and 10,076.96

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Solution

The fourth proportional to 20,623.16, 30,890.82 and 10,076.96 is: 15,093.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.16 : 30,890.82 = 10,076.96 : x
  2. Step 2: Convert to fraction form
    20,623.16/30,890.82 = 10,076.96/x
  3. Step 3: Cross multiply
    20,623.16x = 30,890.82 × 10,076.96
  4. Step 4: Simplify right side
    20,623.16x = 311,285,557.51
  5. Step 5: Solve for x
    x = 311,285,557.51/20,623.16
  6. Step 6: Final answer
    x = 15,093.98

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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.