Home / 30,134.85-45,207.95-12,124.44

Finding the Fourth Proportional to 30,134.85, 45,207.95 and 12,124.44

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Solution

The fourth proportional to 30,134.85, 45,207.95 and 12,124.44 is: 18,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,134.85 : 45,207.95 = 12,124.44 : x
  2. Step 2: Convert to fraction form
    30,134.85/45,207.95 = 12,124.44/x
  3. Step 3: Cross multiply
    30,134.85x = 45,207.95 × 12,124.44
  4. Step 4: Simplify right side
    30,134.85x = 548,121,016.68
  5. Step 5: Solve for x
    x = 548,121,016.68/30,134.85
  6. Step 6: Final answer
    x = 18,188.94

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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.