Home / 20,302.52-28,015.68-11,348.84

Finding the Fourth Proportional to 20,302.52, 28,015.68 and 11,348.84

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Solution

The fourth proportional to 20,302.52, 28,015.68 and 11,348.84 is: 15,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.52 : 28,015.68 = 11,348.84 : x
  2. Step 2: Convert to fraction form
    20,302.52/28,015.68 = 11,348.84/x
  3. Step 3: Cross multiply
    20,302.52x = 28,015.68 × 11,348.84
  4. Step 4: Simplify right side
    20,302.52x = 317,945,469.81
  5. Step 5: Solve for x
    x = 317,945,469.81/20,302.52
  6. Step 6: Final answer
    x = 15,660.39

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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.