Home / 28,562.18-39,410.31-18,489.22

Finding the Fourth Proportional to 28,562.18, 39,410.31 and 18,489.22

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Solution

The fourth proportional to 28,562.18, 39,410.31 and 18,489.22 is: 25,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.18 : 39,410.31 = 18,489.22 : x
  2. Step 2: Convert to fraction form
    28,562.18/39,410.31 = 18,489.22/x
  3. Step 3: Cross multiply
    28,562.18x = 39,410.31 × 18,489.22
  4. Step 4: Simplify right side
    28,562.18x = 728,665,891.86
  5. Step 5: Solve for x
    x = 728,665,891.86/28,562.18
  6. Step 6: Final answer
    x = 25,511.56

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1.5x scale

Why These Related Problems?

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