Home / 30,168.48-45,252.96-12,394.56

Finding the Fourth Proportional to 30,168.48, 45,252.96 and 12,394.56

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Solution

The fourth proportional to 30,168.48, 45,252.96 and 12,394.56 is: 18,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.48 : 45,252.96 = 12,394.56 : x
  2. Step 2: Convert to fraction form
    30,168.48/45,252.96 = 12,394.56/x
  3. Step 3: Cross multiply
    30,168.48x = 45,252.96 × 12,394.56
  4. Step 4: Simplify right side
    30,168.48x = 560,890,527.90
  5. Step 5: Solve for x
    x = 560,890,527.90/30,168.48
  6. Step 6: Final answer
    x = 18,591.94

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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.