Home / 20,479.68-28,262.34-12,096.18

Finding the Fourth Proportional to 20,479.68, 28,262.34 and 12,096.18

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Solution

The fourth proportional to 20,479.68, 28,262.34 and 12,096.18 is: 16,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.68 : 28,262.34 = 12,096.18 : x
  2. Step 2: Convert to fraction form
    20,479.68/28,262.34 = 12,096.18/x
  3. Step 3: Cross multiply
    20,479.68x = 28,262.34 × 12,096.18
  4. Step 4: Simplify right side
    20,479.68x = 341,866,351.86
  5. Step 5: Solve for x
    x = 341,866,351.86/20,479.68
  6. Step 6: Final answer
    x = 16,692.95

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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.