Home / 20,941.15-31,412.90-6,710.86

Finding the Fourth Proportional to 20,941.15, 31,412.90 and 6,710.86

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Solution

The fourth proportional to 20,941.15, 31,412.90 and 6,710.86 is: 10,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.15 : 31,412.90 = 6,710.86 : x
  2. Step 2: Convert to fraction form
    20,941.15/31,412.90 = 6,710.86/x
  3. Step 3: Cross multiply
    20,941.15x = 31,412.90 × 6,710.86
  4. Step 4: Simplify right side
    20,941.15x = 210,807,540.54
  5. Step 5: Solve for x
    x = 210,807,540.54/20,941.15
  6. Step 6: Final answer
    x = 10,066.67

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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.