Home / 20,224.04-27,906.84-12,156.80

Finding the Fourth Proportional to 20,224.04, 27,906.84 and 12,156.80

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Solution

The fourth proportional to 20,224.04, 27,906.84 and 12,156.80 is: 16,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.04 : 27,906.84 = 12,156.80 : x
  2. Step 2: Convert to fraction form
    20,224.04/27,906.84 = 12,156.80/x
  3. Step 3: Cross multiply
    20,224.04x = 27,906.84 × 12,156.80
  4. Step 4: Simplify right side
    20,224.04x = 339,257,872.51
  5. Step 5: Solve for x
    x = 339,257,872.51/20,224.04
  6. Step 6: Final answer
    x = 16,774.98

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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.