Home / 20,008.75-30,013.12-6,861.23

Finding the Fourth Proportional to 20,008.75, 30,013.12 and 6,861.23

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Solution

The fourth proportional to 20,008.75, 30,013.12 and 6,861.23 is: 10,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.75 : 30,013.12 = 6,861.23 : x
  2. Step 2: Convert to fraction form
    20,008.75/30,013.12 = 6,861.23/x
  3. Step 3: Cross multiply
    20,008.75x = 30,013.12 × 6,861.23
  4. Step 4: Simplify right side
    20,008.75x = 205,926,977.22
  5. Step 5: Solve for x
    x = 205,926,977.22/20,008.75
  6. Step 6: Final answer
    x = 10,291.85

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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.