Home / 28,450.67-42,654.87-13,645.49

Finding the Fourth Proportional to 28,450.67, 42,654.87 and 13,645.49

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Solution

The fourth proportional to 28,450.67, 42,654.87 and 13,645.49 is: 20,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.67 : 42,654.87 = 13,645.49 : x
  2. Step 2: Convert to fraction form
    28,450.67/42,654.87 = 13,645.49/x
  3. Step 3: Cross multiply
    28,450.67x = 42,654.87 × 13,645.49
  4. Step 4: Simplify right side
    28,450.67x = 582,046,388.76
  5. Step 5: Solve for x
    x = 582,046,388.76/28,450.67
  6. Step 6: Final answer
    x = 20,458.09

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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.