Home / 20,862.92-28,785.68-12,367.03

Finding the Fourth Proportional to 20,862.92, 28,785.68 and 12,367.03

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Solution

The fourth proportional to 20,862.92, 28,785.68 and 12,367.03 is: 17,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.92 : 28,785.68 = 12,367.03 : x
  2. Step 2: Convert to fraction form
    20,862.92/28,785.68 = 12,367.03/x
  3. Step 3: Cross multiply
    20,862.92x = 28,785.68 × 12,367.03
  4. Step 4: Simplify right side
    20,862.92x = 355,993,334.68
  5. Step 5: Solve for x
    x = 355,993,334.68/20,862.92
  6. Step 6: Final answer
    x = 17,063.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.