Home / 20,167.40-30,240.30-8,467.40

Finding the Fourth Proportional to 20,167.40, 30,240.30 and 8,467.40

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Solution

The fourth proportional to 20,167.40, 30,240.30 and 8,467.40 is: 12,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.40 : 30,240.30 = 8,467.40 : x
  2. Step 2: Convert to fraction form
    20,167.40/30,240.30 = 8,467.40/x
  3. Step 3: Cross multiply
    20,167.40x = 30,240.30 × 8,467.40
  4. Step 4: Simplify right side
    20,167.40x = 256,056,716.22
  5. Step 5: Solve for x
    x = 256,056,716.22/20,167.40
  6. Step 6: Final answer
    x = 12,696.57

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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.