Home / 28,736.12-43,104.12-9,016.40

Finding the Fourth Proportional to 28,736.12, 43,104.12 and 9,016.40

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Solution

The fourth proportional to 28,736.12, 43,104.12 and 9,016.40 is: 13,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.12 : 43,104.12 = 9,016.40 : x
  2. Step 2: Convert to fraction form
    28,736.12/43,104.12 = 9,016.40/x
  3. Step 3: Cross multiply
    28,736.12x = 43,104.12 × 9,016.40
  4. Step 4: Simplify right side
    28,736.12x = 388,643,987.57
  5. Step 5: Solve for x
    x = 388,643,987.57/28,736.12
  6. Step 6: Final answer
    x = 13,524.58

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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.