Home / 20,238.04-30,311.22-10,861.72

Finding the Fourth Proportional to 20,238.04, 30,311.22 and 10,861.72

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Solution

The fourth proportional to 20,238.04, 30,311.22 and 10,861.72 is: 16,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.04 : 30,311.22 = 10,861.72 : x
  2. Step 2: Convert to fraction form
    20,238.04/30,311.22 = 10,861.72/x
  3. Step 3: Cross multiply
    20,238.04x = 30,311.22 × 10,861.72
  4. Step 4: Simplify right side
    20,238.04x = 329,231,984.50
  5. Step 5: Solve for x
    x = 329,231,984.50/20,238.04
  6. Step 6: Final answer
    x = 16,267.98

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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.