Home / 19,884.68-27,440.16-11,922.20

Finding the Fourth Proportional to 19,884.68, 27,440.16 and 11,922.20

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Solution

The fourth proportional to 19,884.68, 27,440.16 and 11,922.20 is: 16,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.68 : 27,440.16 = 11,922.20 : x
  2. Step 2: Convert to fraction form
    19,884.68/27,440.16 = 11,922.20/x
  3. Step 3: Cross multiply
    19,884.68x = 27,440.16 × 11,922.20
  4. Step 4: Simplify right side
    19,884.68x = 327,147,075.55
  5. Step 5: Solve for x
    x = 327,147,075.55/19,884.68
  6. Step 6: Final answer
    x = 16,452.22

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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.