Home / 20,516.54-30,774.81-15,843.36

Finding the Fourth Proportional to 20,516.54, 30,774.81 and 15,843.36

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Solution

The fourth proportional to 20,516.54, 30,774.81 and 15,843.36 is: 23,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.54 : 30,774.81 = 15,843.36 : x
  2. Step 2: Convert to fraction form
    20,516.54/30,774.81 = 15,843.36/x
  3. Step 3: Cross multiply
    20,516.54x = 30,774.81 × 15,843.36
  4. Step 4: Simplify right side
    20,516.54x = 487,576,524.02
  5. Step 5: Solve for x
    x = 487,576,524.02/20,516.54
  6. Step 6: Final answer
    x = 23,765.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.