Home / 18,770.22-28,187.54-16,666.60

Finding the Fourth Proportional to 18,770.22, 28,187.54 and 16,666.60

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Solution

The fourth proportional to 18,770.22, 28,187.54 and 16,666.60 is: 25,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.22 : 28,187.54 = 16,666.60 : x
  2. Step 2: Convert to fraction form
    18,770.22/28,187.54 = 16,666.60/x
  3. Step 3: Cross multiply
    18,770.22x = 28,187.54 × 16,666.60
  4. Step 4: Simplify right side
    18,770.22x = 469,790,454.16
  5. Step 5: Solve for x
    x = 469,790,454.16/18,770.22
  6. Step 6: Final answer
    x = 25,028.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.