Home / 16,830.55-23,221.33-10,865.61

Finding the Fourth Proportional to 16,830.55, 23,221.33 and 10,865.61

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Solution

The fourth proportional to 16,830.55, 23,221.33 and 10,865.61 is: 14,991.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.55 : 23,221.33 = 10,865.61 : x
  2. Step 2: Convert to fraction form
    16,830.55/23,221.33 = 10,865.61/x
  3. Step 3: Cross multiply
    16,830.55x = 23,221.33 × 10,865.61
  4. Step 4: Simplify right side
    16,830.55x = 252,313,949.42
  5. Step 5: Solve for x
    x = 252,313,949.42/16,830.55
  6. Step 6: Final answer
    x = 14,991.43

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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.