Home / 20,168.53-27,835.05-12,213.52

Finding the Fourth Proportional to 20,168.53, 27,835.05 and 12,213.52

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Solution

The fourth proportional to 20,168.53, 27,835.05 and 12,213.52 is: 16,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.53 : 27,835.05 = 12,213.52 : x
  2. Step 2: Convert to fraction form
    20,168.53/27,835.05 = 12,213.52/x
  3. Step 3: Cross multiply
    20,168.53x = 27,835.05 × 12,213.52
  4. Step 4: Simplify right side
    20,168.53x = 339,963,939.88
  5. Step 5: Solve for x
    x = 339,963,939.88/20,168.53
  6. Step 6: Final answer
    x = 16,856.16

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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.