Home / 28,262.25-42,394.19-7,485.75

Finding the Fourth Proportional to 28,262.25, 42,394.19 and 7,485.75

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Solution

The fourth proportional to 28,262.25, 42,394.19 and 7,485.75 is: 11,228.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.25 : 42,394.19 = 7,485.75 : x
  2. Step 2: Convert to fraction form
    28,262.25/42,394.19 = 7,485.75/x
  3. Step 3: Cross multiply
    28,262.25x = 42,394.19 × 7,485.75
  4. Step 4: Simplify right side
    28,262.25x = 317,352,270.36
  5. Step 5: Solve for x
    x = 317,352,270.36/28,262.25
  6. Step 6: Final answer
    x = 11,228.84

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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.