Home / 20,008.86-30,013.31-6,861.34

Finding the Fourth Proportional to 20,008.86, 30,013.31 and 6,861.34

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Solution

The fourth proportional to 20,008.86, 30,013.31 and 6,861.34 is: 10,292.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.86 : 30,013.31 = 6,861.34 : x
  2. Step 2: Convert to fraction form
    20,008.86/30,013.31 = 6,861.34/x
  3. Step 3: Cross multiply
    20,008.86x = 30,013.31 × 6,861.34
  4. Step 4: Simplify right side
    20,008.86x = 205,931,524.44
  5. Step 5: Solve for x
    x = 205,931,524.44/20,008.86
  6. Step 6: Final answer
    x = 10,292.02

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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.