Home / 30,118.43-41,511.54-20,028.83

Finding the Fourth Proportional to 30,118.43, 41,511.54 and 20,028.83

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Solution

The fourth proportional to 30,118.43, 41,511.54 and 20,028.83 is: 27,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.43 : 41,511.54 = 20,028.83 : x
  2. Step 2: Convert to fraction form
    30,118.43/41,511.54 = 20,028.83/x
  3. Step 3: Cross multiply
    30,118.43x = 41,511.54 × 20,028.83
  4. Step 4: Simplify right side
    30,118.43x = 831,427,477.55
  5. Step 5: Solve for x
    x = 831,427,477.55/30,118.43
  6. Step 6: Final answer
    x = 27,605.28

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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.