Home / 20,219.60-27,777.64-16,671.80

Finding the Fourth Proportional to 20,219.60, 27,777.64 and 16,671.80

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Solution

The fourth proportional to 20,219.60, 27,777.64 and 16,671.80 is: 22,903.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.60 : 27,777.64 = 16,671.80 : x
  2. Step 2: Convert to fraction form
    20,219.60/27,777.64 = 16,671.80/x
  3. Step 3: Cross multiply
    20,219.60x = 27,777.64 × 16,671.80
  4. Step 4: Simplify right side
    20,219.60x = 463,103,258.55
  5. Step 5: Solve for x
    x = 463,103,258.55/20,219.60
  6. Step 6: Final answer
    x = 22,903.68

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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.