Home / 28,758.95-39,687.27-16,183.70

Finding the Fourth Proportional to 28,758.95, 39,687.27 and 16,183.70

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Solution

The fourth proportional to 28,758.95, 39,687.27 and 16,183.70 is: 22,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.95 : 39,687.27 = 16,183.70 : x
  2. Step 2: Convert to fraction form
    28,758.95/39,687.27 = 16,183.70/x
  3. Step 3: Cross multiply
    28,758.95x = 39,687.27 × 16,183.70
  4. Step 4: Simplify right side
    28,758.95x = 642,286,871.50
  5. Step 5: Solve for x
    x = 642,286,871.50/28,758.95
  6. Step 6: Final answer
    x = 22,333.46

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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.