Home / 20,262.52-27,961.50-12,305.08

Finding the Fourth Proportional to 20,262.52, 27,961.50 and 12,305.08

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Solution

The fourth proportional to 20,262.52, 27,961.50 and 12,305.08 is: 16,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.52 : 27,961.50 = 12,305.08 : x
  2. Step 2: Convert to fraction form
    20,262.52/27,961.50 = 12,305.08/x
  3. Step 3: Cross multiply
    20,262.52x = 27,961.50 × 12,305.08
  4. Step 4: Simplify right side
    20,262.52x = 344,068,494.42
  5. Step 5: Solve for x
    x = 344,068,494.42/20,262.52
  6. Step 6: Final answer
    x = 16,980.54

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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.