Home / 20,272.52-27,982.06-11,776.70

Finding the Fourth Proportional to 20,272.52, 27,982.06 and 11,776.70

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Solution

The fourth proportional to 20,272.52, 27,982.06 and 11,776.70 is: 16,255.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.52 : 27,982.06 = 11,776.70 : x
  2. Step 2: Convert to fraction form
    20,272.52/27,982.06 = 11,776.70/x
  3. Step 3: Cross multiply
    20,272.52x = 27,982.06 × 11,776.70
  4. Step 4: Simplify right side
    20,272.52x = 329,536,326.00
  5. Step 5: Solve for x
    x = 329,536,326.00/20,272.52
  6. Step 6: Final answer
    x = 16,255.32

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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.