Home / 20,150.37-27,810.07-12,192.66

Finding the Fourth Proportional to 20,150.37, 27,810.07 and 12,192.66

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Solution

The fourth proportional to 20,150.37, 27,810.07 and 12,192.66 is: 16,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.37 : 27,810.07 = 12,192.66 : x
  2. Step 2: Convert to fraction form
    20,150.37/27,810.07 = 12,192.66/x
  3. Step 3: Cross multiply
    20,150.37x = 27,810.07 × 12,192.66
  4. Step 4: Simplify right side
    20,150.37x = 339,078,697.60
  5. Step 5: Solve for x
    x = 339,078,697.60/20,150.37
  6. Step 6: Final answer
    x = 16,827.42

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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.