Home / 28,661.12-39,556.08-16,085.88

Finding the Fourth Proportional to 28,661.12, 39,556.08 and 16,085.88

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Solution

The fourth proportional to 28,661.12, 39,556.08 and 16,085.88 is: 22,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.12 : 39,556.08 = 16,085.88 : x
  2. Step 2: Convert to fraction form
    28,661.12/39,556.08 = 16,085.88/x
  3. Step 3: Cross multiply
    28,661.12x = 39,556.08 × 16,085.88
  4. Step 4: Simplify right side
    28,661.12x = 636,294,356.15
  5. Step 5: Solve for x
    x = 636,294,356.15/28,661.12
  6. Step 6: Final answer
    x = 22,200.61

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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.