Home / 21,800.62-30,027.56-16,755.20

Finding the Fourth Proportional to 21,800.62, 30,027.56 and 16,755.20

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Solution

The fourth proportional to 21,800.62, 30,027.56 and 16,755.20 is: 23,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.62 : 30,027.56 = 16,755.20 : x
  2. Step 2: Convert to fraction form
    21,800.62/30,027.56 = 16,755.20/x
  3. Step 3: Cross multiply
    21,800.62x = 30,027.56 × 16,755.20
  4. Step 4: Simplify right side
    21,800.62x = 503,117,773.31
  5. Step 5: Solve for x
    x = 503,117,773.31/21,800.62
  6. Step 6: Final answer
    x = 23,078.14

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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.