Home / 20,103.29-30,156.11-6,775.17

Finding the Fourth Proportional to 20,103.29, 30,156.11 and 6,775.17

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Solution

The fourth proportional to 20,103.29, 30,156.11 and 6,775.17 is: 10,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.29 : 30,156.11 = 6,775.17 : x
  2. Step 2: Convert to fraction form
    20,103.29/30,156.11 = 6,775.17/x
  3. Step 3: Cross multiply
    20,103.29x = 30,156.11 × 6,775.17
  4. Step 4: Simplify right side
    20,103.29x = 204,312,650.23
  5. Step 5: Solve for x
    x = 204,312,650.23/20,103.29
  6. Step 6: Final answer
    x = 10,163.15

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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.