Home / 20,650.34-28,469.94-16,415.48

Finding the Fourth Proportional to 20,650.34, 28,469.94 and 16,415.48

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Solution

The fourth proportional to 20,650.34, 28,469.94 and 16,415.48 is: 22,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.34 : 28,469.94 = 16,415.48 : x
  2. Step 2: Convert to fraction form
    20,650.34/28,469.94 = 16,415.48/x
  3. Step 3: Cross multiply
    20,650.34x = 28,469.94 × 16,415.48
  4. Step 4: Simplify right side
    20,650.34x = 467,347,730.67
  5. Step 5: Solve for x
    x = 467,347,730.67/20,650.34
  6. Step 6: Final answer
    x = 22,631.48

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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.