Home / 28,456.04-42,692.26-11,812.96

Finding the Fourth Proportional to 28,456.04, 42,692.26 and 11,812.96

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Solution

The fourth proportional to 28,456.04, 42,692.26 and 11,812.96 is: 17,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.04 : 42,692.26 = 11,812.96 : x
  2. Step 2: Convert to fraction form
    28,456.04/42,692.26 = 11,812.96/x
  3. Step 3: Cross multiply
    28,456.04x = 42,692.26 × 11,812.96
  4. Step 4: Simplify right side
    28,456.04x = 504,321,959.69
  5. Step 5: Solve for x
    x = 504,321,959.69/28,456.04
  6. Step 6: Final answer
    x = 17,722.84

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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.