Home / 20,739.42-28,644.44-15,099.53

Finding the Fourth Proportional to 20,739.42, 28,644.44 and 15,099.53

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Solution

The fourth proportional to 20,739.42, 28,644.44 and 15,099.53 is: 20,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.42 : 28,644.44 = 15,099.53 : x
  2. Step 2: Convert to fraction form
    20,739.42/28,644.44 = 15,099.53/x
  3. Step 3: Cross multiply
    20,739.42x = 28,644.44 × 15,099.53
  4. Step 4: Simplify right side
    20,739.42x = 432,517,362.39
  5. Step 5: Solve for x
    x = 432,517,362.39/20,739.42
  6. Step 6: Final answer
    x = 20,854.84

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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.