Home / 20,565.18-30,834.41-8,086.43

Finding the Fourth Proportional to 20,565.18, 30,834.41 and 8,086.43

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Solution

The fourth proportional to 20,565.18, 30,834.41 and 8,086.43 is: 12,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.18 : 30,834.41 = 8,086.43 : x
  2. Step 2: Convert to fraction form
    20,565.18/30,834.41 = 8,086.43/x
  3. Step 3: Cross multiply
    20,565.18x = 30,834.41 × 8,086.43
  4. Step 4: Simplify right side
    20,565.18x = 249,340,103.45
  5. Step 5: Solve for x
    x = 249,340,103.45/20,565.18
  6. Step 6: Final answer
    x = 12,124.38

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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.