Home / 28,285.85-39,033.20-16,961.58

Finding the Fourth Proportional to 28,285.85, 39,033.20 and 16,961.58

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Solution

The fourth proportional to 28,285.85, 39,033.20 and 16,961.58 is: 23,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.85 : 39,033.20 = 16,961.58 : x
  2. Step 2: Convert to fraction form
    28,285.85/39,033.20 = 16,961.58/x
  3. Step 3: Cross multiply
    28,285.85x = 39,033.20 × 16,961.58
  4. Step 4: Simplify right side
    28,285.85x = 662,064,786.86
  5. Step 5: Solve for x
    x = 662,064,786.86/28,285.85
  6. Step 6: Final answer
    x = 23,406.22

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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.