Home / 30,589.44-45,890.88-12,120.96

Finding the Fourth Proportional to 30,589.44, 45,890.88 and 12,120.96

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Solution

The fourth proportional to 30,589.44, 45,890.88 and 12,120.96 is: 18,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,589.44 : 45,890.88 = 12,120.96 : x
  2. Step 2: Convert to fraction form
    30,589.44/45,890.88 = 12,120.96/x
  3. Step 3: Cross multiply
    30,589.44x = 45,890.88 × 12,120.96
  4. Step 4: Simplify right side
    30,589.44x = 556,241,520.84
  5. Step 5: Solve for x
    x = 556,241,520.84/30,589.44
  6. Step 6: Final answer
    x = 18,184.10

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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.