Home / 20,609.28-30,844.80-16,911.36

Finding the Fourth Proportional to 20,609.28, 30,844.80 and 16,911.36

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Solution

The fourth proportional to 20,609.28, 30,844.80 and 16,911.36 is: 25,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.28 : 30,844.80 = 16,911.36 : x
  2. Step 2: Convert to fraction form
    20,609.28/30,844.80 = 16,911.36/x
  3. Step 3: Cross multiply
    20,609.28x = 30,844.80 × 16,911.36
  4. Step 4: Simplify right side
    20,609.28x = 521,627,516.93
  5. Step 5: Solve for x
    x = 521,627,516.93/20,609.28
  6. Step 6: Final answer
    x = 25,310.32

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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.