Home / 20,634.52-28,475.87-11,681.83

Finding the Fourth Proportional to 20,634.52, 28,475.87 and 11,681.83

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Solution

The fourth proportional to 20,634.52, 28,475.87 and 11,681.83 is: 16,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.52 : 28,475.87 = 11,681.83 : x
  2. Step 2: Convert to fraction form
    20,634.52/28,475.87 = 11,681.83/x
  3. Step 3: Cross multiply
    20,634.52x = 28,475.87 × 11,681.83
  4. Step 4: Simplify right side
    20,634.52x = 332,650,272.44
  5. Step 5: Solve for x
    x = 332,650,272.44/20,634.52
  6. Step 6: Final answer
    x = 16,121.06

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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.