Home / 20,063.70-27,688.50-11,112.03

Finding the Fourth Proportional to 20,063.70, 27,688.50 and 11,112.03

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Solution

The fourth proportional to 20,063.70, 27,688.50 and 11,112.03 is: 15,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.70 : 27,688.50 = 11,112.03 : x
  2. Step 2: Convert to fraction form
    20,063.70/27,688.50 = 11,112.03/x
  3. Step 3: Cross multiply
    20,063.70x = 27,688.50 × 11,112.03
  4. Step 4: Simplify right side
    20,063.70x = 307,675,442.66
  5. Step 5: Solve for x
    x = 307,675,442.66/20,063.70
  6. Step 6: Final answer
    x = 15,334.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.