Home / 20,047.68-27,665.12-11,095.56

Finding the Fourth Proportional to 20,047.68, 27,665.12 and 11,095.56

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Solution

The fourth proportional to 20,047.68, 27,665.12 and 11,095.56 is: 15,311.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.68 : 27,665.12 = 11,095.56 : x
  2. Step 2: Convert to fraction form
    20,047.68/27,665.12 = 11,095.56/x
  3. Step 3: Cross multiply
    20,047.68x = 27,665.12 × 11,095.56
  4. Step 4: Simplify right side
    20,047.68x = 306,959,998.87
  5. Step 5: Solve for x
    x = 306,959,998.87/20,047.68
  6. Step 6: Final answer
    x = 15,311.50

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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.