Home / 28,686.62-39,591.26-16,111.38

Finding the Fourth Proportional to 28,686.62, 39,591.26 and 16,111.38

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Solution

The fourth proportional to 28,686.62, 39,591.26 and 16,111.38 is: 22,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.62 : 39,591.26 = 16,111.38 : x
  2. Step 2: Convert to fraction form
    28,686.62/39,591.26 = 16,111.38/x
  3. Step 3: Cross multiply
    28,686.62x = 39,591.26 × 16,111.38
  4. Step 4: Simplify right side
    28,686.62x = 637,869,834.54
  5. Step 5: Solve for x
    x = 637,869,834.54/28,686.62
  6. Step 6: Final answer
    x = 22,235.80

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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.