Home / 13,385.42-20,079.11-3,524.63

Finding the Fourth Proportional to 13,385.42, 20,079.11 and 3,524.63

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Solution

The fourth proportional to 13,385.42, 20,079.11 and 3,524.63 is: 5,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.42 : 20,079.11 = 3,524.63 : x
  2. Step 2: Convert to fraction form
    13,385.42/20,079.11 = 3,524.63/x
  3. Step 3: Cross multiply
    13,385.42x = 20,079.11 × 3,524.63
  4. Step 4: Simplify right side
    13,385.42x = 70,771,328.68
  5. Step 5: Solve for x
    x = 70,771,328.68/13,385.42
  6. Step 6: Final answer
    x = 5,287.20

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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.