Home / 19,998.36-27,611.28-15,452.64

Finding the Fourth Proportional to 19,998.36, 27,611.28 and 15,452.64

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Solution

The fourth proportional to 19,998.36, 27,611.28 and 15,452.64 is: 21,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.36 : 27,611.28 = 15,452.64 : x
  2. Step 2: Convert to fraction form
    19,998.36/27,611.28 = 15,452.64/x
  3. Step 3: Cross multiply
    19,998.36x = 27,611.28 × 15,452.64
  4. Step 4: Simplify right side
    19,998.36x = 426,667,169.78
  5. Step 5: Solve for x
    x = 426,667,169.78/19,998.36
  6. Step 6: Final answer
    x = 21,335.11

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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.