Home / 20,517.86-30,768.08-8,035.91

Finding the Fourth Proportional to 20,517.86, 30,768.08 and 8,035.91

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Solution

The fourth proportional to 20,517.86, 30,768.08 and 8,035.91 is: 12,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.86 : 30,768.08 = 8,035.91 : x
  2. Step 2: Convert to fraction form
    20,517.86/30,768.08 = 8,035.91/x
  3. Step 3: Cross multiply
    20,517.86x = 30,768.08 × 8,035.91
  4. Step 4: Simplify right side
    20,517.86x = 247,249,443.11
  5. Step 5: Solve for x
    x = 247,249,443.11/20,517.86
  6. Step 6: Final answer
    x = 12,050.45

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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.