Home / 30,115.24-45,163.36-12,581.44

Finding the Fourth Proportional to 30,115.24, 45,163.36 and 12,581.44

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Solution

The fourth proportional to 30,115.24, 45,163.36 and 12,581.44 is: 18,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.24 : 45,163.36 = 12,581.44 : x
  2. Step 2: Convert to fraction form
    30,115.24/45,163.36 = 12,581.44/x
  3. Step 3: Cross multiply
    30,115.24x = 45,163.36 × 12,581.44
  4. Step 4: Simplify right side
    30,115.24x = 568,220,104.04
  5. Step 5: Solve for x
    x = 568,220,104.04/30,115.24
  6. Step 6: Final answer
    x = 18,868.19

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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.