Home / 28,579.44-39,426.44-18,511.22

Finding the Fourth Proportional to 28,579.44, 39,426.44 and 18,511.22

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Solution

The fourth proportional to 28,579.44, 39,426.44 and 18,511.22 is: 25,536.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.44 : 39,426.44 = 18,511.22 : x
  2. Step 2: Convert to fraction form
    28,579.44/39,426.44 = 18,511.22/x
  3. Step 3: Cross multiply
    28,579.44x = 39,426.44 × 18,511.22
  4. Step 4: Simplify right side
    28,579.44x = 729,831,504.66
  5. Step 5: Solve for x
    x = 729,831,504.66/28,579.44
  6. Step 6: Final answer
    x = 25,536.94

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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.