Home / 28,804.61-39,786.09-22,170.71

Finding the Fourth Proportional to 28,804.61, 39,786.09 and 22,170.71

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Solution

The fourth proportional to 28,804.61, 39,786.09 and 22,170.71 is: 30,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.61 : 39,786.09 = 22,170.71 : x
  2. Step 2: Convert to fraction form
    28,804.61/39,786.09 = 22,170.71/x
  3. Step 3: Cross multiply
    28,804.61x = 39,786.09 × 22,170.71
  4. Step 4: Simplify right side
    28,804.61x = 882,085,879.75
  5. Step 5: Solve for x
    x = 882,085,879.75/28,804.61
  6. Step 6: Final answer
    x = 30,623.08

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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.