Home / 20,125.04-27,773.46-11,172.67

Finding the Fourth Proportional to 20,125.04, 27,773.46 and 11,172.67

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Solution

The fourth proportional to 20,125.04, 27,773.46 and 11,172.67 is: 15,418.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.04 : 27,773.46 = 11,172.67 : x
  2. Step 2: Convert to fraction form
    20,125.04/27,773.46 = 11,172.67/x
  3. Step 3: Cross multiply
    20,125.04x = 27,773.46 × 11,172.67
  4. Step 4: Simplify right side
    20,125.04x = 310,303,633.90
  5. Step 5: Solve for x
    x = 310,303,633.90/20,125.04
  6. Step 6: Final answer
    x = 15,418.79

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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.