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Finding the Fourth Proportional to 28,992.48, 40,000.20 and 16,414.80

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Solution

The fourth proportional to 28,992.48, 40,000.20 and 16,414.80 is: 22,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.48 : 40,000.20 = 16,414.80 : x
  2. Step 2: Convert to fraction form
    28,992.48/40,000.20 = 16,414.80/x
  3. Step 3: Cross multiply
    28,992.48x = 40,000.20 × 16,414.80
  4. Step 4: Simplify right side
    28,992.48x = 656,595,282.96
  5. Step 5: Solve for x
    x = 656,595,282.96/28,992.48
  6. Step 6: Final answer
    x = 22,647.09

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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.