Home / 20,123.52-27,797.20-16,777.44

Finding the Fourth Proportional to 20,123.52, 27,797.20 and 16,777.44

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Solution

The fourth proportional to 20,123.52, 27,797.20 and 16,777.44 is: 23,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.52 : 27,797.20 = 16,777.44 : x
  2. Step 2: Convert to fraction form
    20,123.52/27,797.20 = 16,777.44/x
  3. Step 3: Cross multiply
    20,123.52x = 27,797.20 × 16,777.44
  4. Step 4: Simplify right side
    20,123.52x = 466,365,855.17
  5. Step 5: Solve for x
    x = 466,365,855.17/20,123.52
  6. Step 6: Final answer
    x = 23,175.16

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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.