Home / 28,284.44-42,400.68-12,693.56

Finding the Fourth Proportional to 28,284.44, 42,400.68 and 12,693.56

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Solution

The fourth proportional to 28,284.44, 42,400.68 and 12,693.56 is: 19,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.44 : 42,400.68 = 12,693.56 : x
  2. Step 2: Convert to fraction form
    28,284.44/42,400.68 = 12,693.56/x
  3. Step 3: Cross multiply
    28,284.44x = 42,400.68 × 12,693.56
  4. Step 4: Simplify right side
    28,284.44x = 538,215,575.62
  5. Step 5: Solve for x
    x = 538,215,575.62/28,284.44
  6. Step 6: Final answer
    x = 19,028.68

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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.