Home / 28,716.48-39,630.60-16,619.40

Finding the Fourth Proportional to 28,716.48, 39,630.60 and 16,619.40

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Solution

The fourth proportional to 28,716.48, 39,630.60 and 16,619.40 is: 22,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.48 : 39,630.60 = 16,619.40 : x
  2. Step 2: Convert to fraction form
    28,716.48/39,630.60 = 16,619.40/x
  3. Step 3: Cross multiply
    28,716.48x = 39,630.60 × 16,619.40
  4. Step 4: Simplify right side
    28,716.48x = 658,636,793.64
  5. Step 5: Solve for x
    x = 658,636,793.64/28,716.48
  6. Step 6: Final answer
    x = 22,935.85

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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.