Home / 28,716.05-43,030.11-19,321.27

Finding the Fourth Proportional to 28,716.05, 43,030.11 and 19,321.27

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Solution

The fourth proportional to 28,716.05, 43,030.11 and 19,321.27 is: 28,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.05 : 43,030.11 = 19,321.27 : x
  2. Step 2: Convert to fraction form
    28,716.05/43,030.11 = 19,321.27/x
  3. Step 3: Cross multiply
    28,716.05x = 43,030.11 × 19,321.27
  4. Step 4: Simplify right side
    28,716.05x = 831,396,373.44
  5. Step 5: Solve for x
    x = 831,396,373.44/28,716.05
  6. Step 6: Final answer
    x = 28,952.32

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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.