Home / 20,217.60-27,774.90-16,669.80

Finding the Fourth Proportional to 20,217.60, 27,774.90 and 16,669.80

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Solution

The fourth proportional to 20,217.60, 27,774.90 and 16,669.80 is: 22,900.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.60 : 27,774.90 = 16,669.80 : x
  2. Step 2: Convert to fraction form
    20,217.60/27,774.90 = 16,669.80/x
  3. Step 3: Cross multiply
    20,217.60x = 27,774.90 × 16,669.80
  4. Step 4: Simplify right side
    20,217.60x = 463,002,028.02
  5. Step 5: Solve for x
    x = 463,002,028.02/20,217.60
  6. Step 6: Final answer
    x = 22,900.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.