Home / 20,477.62-28,253.46-11,524.60

Finding the Fourth Proportional to 20,477.62, 28,253.46 and 11,524.60

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Solution

The fourth proportional to 20,477.62, 28,253.46 and 11,524.60 is: 15,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.62 : 28,253.46 = 11,524.60 : x
  2. Step 2: Convert to fraction form
    20,477.62/28,253.46 = 11,524.60/x
  3. Step 3: Cross multiply
    20,477.62x = 28,253.46 × 11,524.60
  4. Step 4: Simplify right side
    20,477.62x = 325,609,825.12
  5. Step 5: Solve for x
    x = 325,609,825.12/20,477.62
  6. Step 6: Final answer
    x = 15,900.77

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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.