Home / 28,857.57-39,821.67-16,109.94

Finding the Fourth Proportional to 28,857.57, 39,821.67 and 16,109.94

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Solution

The fourth proportional to 28,857.57, 39,821.67 and 16,109.94 is: 22,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.57 : 39,821.67 = 16,109.94 : x
  2. Step 2: Convert to fraction form
    28,857.57/39,821.67 = 16,109.94/x
  3. Step 3: Cross multiply
    28,857.57x = 39,821.67 × 16,109.94
  4. Step 4: Simplify right side
    28,857.57x = 641,524,714.40
  5. Step 5: Solve for x
    x = 641,524,714.40/28,857.57
  6. Step 6: Final answer
    x = 22,230.73

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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.