Home / 30,245.10-45,331.20-15,446.40

Finding the Fourth Proportional to 30,245.10, 45,331.20 and 15,446.40

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Solution

The fourth proportional to 30,245.10, 45,331.20 and 15,446.40 is: 23,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.10 : 45,331.20 = 15,446.40 : x
  2. Step 2: Convert to fraction form
    30,245.10/45,331.20 = 15,446.40/x
  3. Step 3: Cross multiply
    30,245.10x = 45,331.20 × 15,446.40
  4. Step 4: Simplify right side
    30,245.10x = 700,203,847.68
  5. Step 5: Solve for x
    x = 700,203,847.68/30,245.10
  6. Step 6: Final answer
    x = 23,150.98

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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.