Home / 30,238.88-45,367.49-12,217.86

Finding the Fourth Proportional to 30,238.88, 45,367.49 and 12,217.86

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Solution

The fourth proportional to 30,238.88, 45,367.49 and 12,217.86 is: 18,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.88 : 45,367.49 = 12,217.86 : x
  2. Step 2: Convert to fraction form
    30,238.88/45,367.49 = 12,217.86/x
  3. Step 3: Cross multiply
    30,238.88x = 45,367.49 × 12,217.86
  4. Step 4: Simplify right side
    30,238.88x = 554,293,580.28
  5. Step 5: Solve for x
    x = 554,293,580.28/30,238.88
  6. Step 6: Final answer
    x = 18,330.50

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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.