Home / 20,834.04-31,247.70-7,692.60

Finding the Fourth Proportional to 20,834.04, 31,247.70 and 7,692.60

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Solution

The fourth proportional to 20,834.04, 31,247.70 and 7,692.60 is: 11,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.04 : 31,247.70 = 7,692.60 : x
  2. Step 2: Convert to fraction form
    20,834.04/31,247.70 = 7,692.60/x
  3. Step 3: Cross multiply
    20,834.04x = 31,247.70 × 7,692.60
  4. Step 4: Simplify right side
    20,834.04x = 240,376,057.02
  5. Step 5: Solve for x
    x = 240,376,057.02/20,834.04
  6. Step 6: Final answer
    x = 11,537.66

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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.