Home / 20,516.88-30,775.97-6,477.04

Finding the Fourth Proportional to 20,516.88, 30,775.97 and 6,477.04

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Solution

The fourth proportional to 20,516.88, 30,775.97 and 6,477.04 is: 9,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.88 : 30,775.97 = 6,477.04 : x
  2. Step 2: Convert to fraction form
    20,516.88/30,775.97 = 6,477.04/x
  3. Step 3: Cross multiply
    20,516.88x = 30,775.97 × 6,477.04
  4. Step 4: Simplify right side
    20,516.88x = 199,337,188.73
  5. Step 5: Solve for x
    x = 199,337,188.73/20,516.88
  6. Step 6: Final answer
    x = 9,715.77

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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.