Home / 28,961.58-39,957.69-16,212.89

Finding the Fourth Proportional to 28,961.58, 39,957.69 and 16,212.89

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Solution

The fourth proportional to 28,961.58, 39,957.69 and 16,212.89 is: 22,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.58 : 39,957.69 = 16,212.89 : x
  2. Step 2: Convert to fraction form
    28,961.58/39,957.69 = 16,212.89/x
  3. Step 3: Cross multiply
    28,961.58x = 39,957.69 × 16,212.89
  4. Step 4: Simplify right side
    28,961.58x = 647,829,632.62
  5. Step 5: Solve for x
    x = 647,829,632.62/28,961.58
  6. Step 6: Final answer
    x = 22,368.59

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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.