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Finding the Fourth Proportional to 19,793.80, 29,658.30 and 16,877.80

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Solution

The fourth proportional to 19,793.80, 29,658.30 and 16,877.80 is: 25,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.80 : 29,658.30 = 16,877.80 : x
  2. Step 2: Convert to fraction form
    19,793.80/29,658.30 = 16,877.80/x
  3. Step 3: Cross multiply
    19,793.80x = 29,658.30 × 16,877.80
  4. Step 4: Simplify right side
    19,793.80x = 500,566,855.74
  5. Step 5: Solve for x
    x = 500,566,855.74/19,793.80
  6. Step 6: Final answer
    x = 25,289.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.