Home / 20,008.96-30,017.79-6,861.65

Finding the Fourth Proportional to 20,008.96, 30,017.79 and 6,861.65

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Solution

The fourth proportional to 20,008.96, 30,017.79 and 6,861.65 is: 10,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.96 : 30,017.79 = 6,861.65 : x
  2. Step 2: Convert to fraction form
    20,008.96/30,017.79 = 6,861.65/x
  3. Step 3: Cross multiply
    20,008.96x = 30,017.79 × 6,861.65
  4. Step 4: Simplify right side
    20,008.96x = 205,971,418.66
  5. Step 5: Solve for x
    x = 205,971,418.66/20,008.96
  6. Step 6: Final answer
    x = 10,293.96

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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.