Home / 20,179.71-30,282.30-7,701.03

Finding the Fourth Proportional to 20,179.71, 30,282.30 and 7,701.03

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Solution

The fourth proportional to 20,179.71, 30,282.30 and 7,701.03 is: 11,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.71 : 30,282.30 = 7,701.03 : x
  2. Step 2: Convert to fraction form
    20,179.71/30,282.30 = 7,701.03/x
  3. Step 3: Cross multiply
    20,179.71x = 30,282.30 × 7,701.03
  4. Step 4: Simplify right side
    20,179.71x = 233,204,900.77
  5. Step 5: Solve for x
    x = 233,204,900.77/20,179.71
  6. Step 6: Final answer
    x = 11,556.40

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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.