Home / 28,086.76-38,758.14-16,769.04

Finding the Fourth Proportional to 28,086.76, 38,758.14 and 16,769.04

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Solution

The fourth proportional to 28,086.76, 38,758.14 and 16,769.04 is: 23,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.76 : 38,758.14 = 16,769.04 : x
  2. Step 2: Convert to fraction form
    28,086.76/38,758.14 = 16,769.04/x
  3. Step 3: Cross multiply
    28,086.76x = 38,758.14 × 16,769.04
  4. Step 4: Simplify right side
    28,086.76x = 649,936,799.99
  5. Step 5: Solve for x
    x = 649,936,799.99/28,086.76
  6. Step 6: Final answer
    x = 23,140.33

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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.