Home / 19,378.12-29,070.78-11,067.52

Finding the Fourth Proportional to 19,378.12, 29,070.78 and 11,067.52

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Solution

The fourth proportional to 19,378.12, 29,070.78 and 11,067.52 is: 16,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.12 : 29,070.78 = 11,067.52 : x
  2. Step 2: Convert to fraction form
    19,378.12/29,070.78 = 11,067.52/x
  3. Step 3: Cross multiply
    19,378.12x = 29,070.78 × 11,067.52
  4. Step 4: Simplify right side
    19,378.12x = 321,741,439.07
  5. Step 5: Solve for x
    x = 321,741,439.07/19,378.12
  6. Step 6: Final answer
    x = 16,603.34

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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.