Home / 20,133.52-27,784.50-11,749.96

Finding the Fourth Proportional to 20,133.52, 27,784.50 and 11,749.96

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Solution

The fourth proportional to 20,133.52, 27,784.50 and 11,749.96 is: 16,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.52 : 27,784.50 = 11,749.96 : x
  2. Step 2: Convert to fraction form
    20,133.52/27,784.50 = 11,749.96/x
  3. Step 3: Cross multiply
    20,133.52x = 27,784.50 × 11,749.96
  4. Step 4: Simplify right side
    20,133.52x = 326,466,763.62
  5. Step 5: Solve for x
    x = 326,466,763.62/20,133.52
  6. Step 6: Final answer
    x = 16,215.09

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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.