Home / 28,412.19-42,618.25-7,635.69

Finding the Fourth Proportional to 28,412.19, 42,618.25 and 7,635.69

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Solution

The fourth proportional to 28,412.19, 42,618.25 and 7,635.69 is: 11,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.19 : 42,618.25 = 7,635.69 : x
  2. Step 2: Convert to fraction form
    28,412.19/42,618.25 = 7,635.69/x
  3. Step 3: Cross multiply
    28,412.19x = 42,618.25 × 7,635.69
  4. Step 4: Simplify right side
    28,412.19x = 325,419,745.34
  5. Step 5: Solve for x
    x = 325,419,745.34/28,412.19
  6. Step 6: Final answer
    x = 11,453.53

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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.