Home / 40,249.28-60,328.72-18,912.44

Finding the Fourth Proportional to 40,249.28, 60,328.72 and 18,912.44

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Solution

The fourth proportional to 40,249.28, 60,328.72 and 18,912.44 is: 28,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,249.28 : 60,328.72 = 18,912.44 : x
  2. Step 2: Convert to fraction form
    40,249.28/60,328.72 = 18,912.44/x
  3. Step 3: Cross multiply
    40,249.28x = 60,328.72 × 18,912.44
  4. Step 4: Simplify right side
    40,249.28x = 1,140,963,297.28
  5. Step 5: Solve for x
    x = 1,140,963,297.28/40,249.28
  6. Step 6: Final answer
    x = 28,347.42

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1.5x scale

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.