Home / 20,537.76-30,861.36-11,184.72

Finding the Fourth Proportional to 20,537.76, 30,861.36 and 11,184.72

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Solution

The fourth proportional to 20,537.76, 30,861.36 and 11,184.72 is: 16,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.76 : 30,861.36 = 11,184.72 : x
  2. Step 2: Convert to fraction form
    20,537.76/30,861.36 = 11,184.72/x
  3. Step 3: Cross multiply
    20,537.76x = 30,861.36 × 11,184.72
  4. Step 4: Simplify right side
    20,537.76x = 345,175,670.42
  5. Step 5: Solve for x
    x = 345,175,670.42/20,537.76
  6. Step 6: Final answer
    x = 16,806.88

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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.