Home / 20,270.86-27,962.15-12,198.94

Finding the Fourth Proportional to 20,270.86, 27,962.15 and 12,198.94

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Solution

The fourth proportional to 20,270.86, 27,962.15 and 12,198.94 is: 16,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.86 : 27,962.15 = 12,198.94 : x
  2. Step 2: Convert to fraction form
    20,270.86/27,962.15 = 12,198.94/x
  3. Step 3: Cross multiply
    20,270.86x = 27,962.15 × 12,198.94
  4. Step 4: Simplify right side
    20,270.86x = 341,108,459.22
  5. Step 5: Solve for x
    x = 341,108,459.22/20,270.86
  6. Step 6: Final answer
    x = 16,827.53

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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.