Home / 20,650.46-28,500.06-12,266.96

Finding the Fourth Proportional to 20,650.46, 28,500.06 and 12,266.96

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Solution

The fourth proportional to 20,650.46, 28,500.06 and 12,266.96 is: 16,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.46 : 28,500.06 = 12,266.96 : x
  2. Step 2: Convert to fraction form
    20,650.46/28,500.06 = 12,266.96/x
  3. Step 3: Cross multiply
    20,650.46x = 28,500.06 × 12,266.96
  4. Step 4: Simplify right side
    20,650.46x = 349,609,096.02
  5. Step 5: Solve for x
    x = 349,609,096.02/20,650.46
  6. Step 6: Final answer
    x = 16,929.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.