Home / 19,621.44-27,075.92-11,121.62

Finding the Fourth Proportional to 19,621.44, 27,075.92 and 11,121.62

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Solution

The fourth proportional to 19,621.44, 27,075.92 and 11,121.62 is: 15,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.44 : 27,075.92 = 11,121.62 : x
  2. Step 2: Convert to fraction form
    19,621.44/27,075.92 = 11,121.62/x
  3. Step 3: Cross multiply
    19,621.44x = 27,075.92 × 11,121.62
  4. Step 4: Simplify right side
    19,621.44x = 301,127,902.40
  5. Step 5: Solve for x
    x = 301,127,902.40/19,621.44
  6. Step 6: Final answer
    x = 15,346.88

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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.