Home / 20,178.24-27,835.59-11,789.88

Finding the Fourth Proportional to 20,178.24, 27,835.59 and 11,789.88

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Solution

The fourth proportional to 20,178.24, 27,835.59 and 11,789.88 is: 16,263.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.24 : 27,835.59 = 11,789.88 : x
  2. Step 2: Convert to fraction form
    20,178.24/27,835.59 = 11,789.88/x
  3. Step 3: Cross multiply
    20,178.24x = 27,835.59 × 11,789.88
  4. Step 4: Simplify right side
    20,178.24x = 328,178,265.83
  5. Step 5: Solve for x
    x = 328,178,265.83/20,178.24
  6. Step 6: Final answer
    x = 16,263.97

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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.