Home / 28,957.14-39,956.59-16,209.66

Finding the Fourth Proportional to 28,957.14, 39,956.59 and 16,209.66

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Solution

The fourth proportional to 28,957.14, 39,956.59 and 16,209.66 is: 22,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.14 : 39,956.59 = 16,209.66 : x
  2. Step 2: Convert to fraction form
    28,957.14/39,956.59 = 16,209.66/x
  3. Step 3: Cross multiply
    28,957.14x = 39,956.59 × 16,209.66
  4. Step 4: Simplify right side
    28,957.14x = 647,682,738.66
  5. Step 5: Solve for x
    x = 647,682,738.66/28,957.14
  6. Step 6: Final answer
    x = 22,366.94

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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.