Home / 20,358.94-28,096.46-11,284.12

Finding the Fourth Proportional to 20,358.94, 28,096.46 and 11,284.12

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Solution

The fourth proportional to 20,358.94, 28,096.46 and 11,284.12 is: 15,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.94 : 28,096.46 = 11,284.12 : x
  2. Step 2: Convert to fraction form
    20,358.94/28,096.46 = 11,284.12/x
  3. Step 3: Cross multiply
    20,358.94x = 28,096.46 × 11,284.12
  4. Step 4: Simplify right side
    20,358.94x = 317,043,629.31
  5. Step 5: Solve for x
    x = 317,043,629.31/20,358.94
  6. Step 6: Final answer
    x = 15,572.70

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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.