Home / 22,188.06-30,621.73-13,235.56

Finding the Fourth Proportional to 22,188.06, 30,621.73 and 13,235.56

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Solution

The fourth proportional to 22,188.06, 30,621.73 and 13,235.56 is: 18,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.06 : 30,621.73 = 13,235.56 : x
  2. Step 2: Convert to fraction form
    22,188.06/30,621.73 = 13,235.56/x
  3. Step 3: Cross multiply
    22,188.06x = 30,621.73 × 13,235.56
  4. Step 4: Simplify right side
    22,188.06x = 405,295,744.72
  5. Step 5: Solve for x
    x = 405,295,744.72/22,188.06
  6. Step 6: Final answer
    x = 18,266.39

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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.