Home / 30,163.14-45,170.85-15,379.02

Finding the Fourth Proportional to 30,163.14, 45,170.85 and 15,379.02

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Solution

The fourth proportional to 30,163.14, 45,170.85 and 15,379.02 is: 23,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.14 : 45,170.85 = 15,379.02 : x
  2. Step 2: Convert to fraction form
    30,163.14/45,170.85 = 15,379.02/x
  3. Step 3: Cross multiply
    30,163.14x = 45,170.85 × 15,379.02
  4. Step 4: Simplify right side
    30,163.14x = 694,683,405.57
  5. Step 5: Solve for x
    x = 694,683,405.57/30,163.14
  6. Step 6: Final answer
    x = 23,030.87

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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.