Home / 20,328.43-30,476.20-8,491.27

Finding the Fourth Proportional to 20,328.43, 30,476.20 and 8,491.27

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Solution

The fourth proportional to 20,328.43, 30,476.20 and 8,491.27 is: 12,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.43 : 30,476.20 = 8,491.27 : x
  2. Step 2: Convert to fraction form
    20,328.43/30,476.20 = 8,491.27/x
  3. Step 3: Cross multiply
    20,328.43x = 30,476.20 × 8,491.27
  4. Step 4: Simplify right side
    20,328.43x = 258,781,556.59
  5. Step 5: Solve for x
    x = 258,781,556.59/20,328.43
  6. Step 6: Final answer
    x = 12,730.03

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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.