Home / 30,404.97-45,607.19-12,872.25

Finding the Fourth Proportional to 30,404.97, 45,607.19 and 12,872.25

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Solution

The fourth proportional to 30,404.97, 45,607.19 and 12,872.25 is: 19,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.97 : 45,607.19 = 12,872.25 : x
  2. Step 2: Convert to fraction form
    30,404.97/45,607.19 = 12,872.25/x
  3. Step 3: Cross multiply
    30,404.97x = 45,607.19 × 12,872.25
  4. Step 4: Simplify right side
    30,404.97x = 587,067,087.12
  5. Step 5: Solve for x
    x = 587,067,087.12/30,404.97
  6. Step 6: Final answer
    x = 19,308.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.