Home / 20,576.52-28,369.08-16,795.80

Finding the Fourth Proportional to 20,576.52, 28,369.08 and 16,795.80

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Solution

The fourth proportional to 20,576.52, 28,369.08 and 16,795.80 is: 23,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.52 : 28,369.08 = 16,795.80 : x
  2. Step 2: Convert to fraction form
    20,576.52/28,369.08 = 16,795.80/x
  3. Step 3: Cross multiply
    20,576.52x = 28,369.08 × 16,795.80
  4. Step 4: Simplify right side
    20,576.52x = 476,481,393.86
  5. Step 5: Solve for x
    x = 476,481,393.86/20,576.52
  6. Step 6: Final answer
    x = 23,156.56

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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.