Home / 20,481.68-28,265.24-11,529.50

Finding the Fourth Proportional to 20,481.68, 28,265.24 and 11,529.50

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Solution

The fourth proportional to 20,481.68, 28,265.24 and 11,529.50 is: 15,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,481.68 : 28,265.24 = 11,529.50 : x
  2. Step 2: Convert to fraction form
    20,481.68/28,265.24 = 11,529.50/x
  3. Step 3: Cross multiply
    20,481.68x = 28,265.24 × 11,529.50
  4. Step 4: Simplify right side
    20,481.68x = 325,884,084.58
  5. Step 5: Solve for x
    x = 325,884,084.58/20,481.68
  6. Step 6: Final answer
    x = 15,911.01

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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.