Home / 28,865.67-39,834.50-16,290.33

Finding the Fourth Proportional to 28,865.67, 39,834.50 and 16,290.33

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Solution

The fourth proportional to 28,865.67, 39,834.50 and 16,290.33 is: 22,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.67 : 39,834.50 = 16,290.33 : x
  2. Step 2: Convert to fraction form
    28,865.67/39,834.50 = 16,290.33/x
  3. Step 3: Cross multiply
    28,865.67x = 39,834.50 × 16,290.33
  4. Step 4: Simplify right side
    28,865.67x = 648,917,068.93
  5. Step 5: Solve for x
    x = 648,917,068.93/28,865.67
  6. Step 6: Final answer
    x = 22,480.58

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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.