Home / 20,644.02-28,489.32-11,692.86

Finding the Fourth Proportional to 20,644.02, 28,489.32 and 11,692.86

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Solution

The fourth proportional to 20,644.02, 28,489.32 and 11,692.86 is: 16,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.02 : 28,489.32 = 11,692.86 : x
  2. Step 2: Convert to fraction form
    20,644.02/28,489.32 = 11,692.86/x
  3. Step 3: Cross multiply
    20,644.02x = 28,489.32 × 11,692.86
  4. Step 4: Simplify right side
    20,644.02x = 333,121,630.26
  5. Step 5: Solve for x
    x = 333,121,630.26/20,644.02
  6. Step 6: Final answer
    x = 16,136.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.