Home / 18,410.60-25,455.78-16,077.80

Finding the Fourth Proportional to 18,410.60, 25,455.78 and 16,077.80

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Solution

The fourth proportional to 18,410.60, 25,455.78 and 16,077.80 is: 22,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.60 : 25,455.78 = 16,077.80 : x
  2. Step 2: Convert to fraction form
    18,410.60/25,455.78 = 16,077.80/x
  3. Step 3: Cross multiply
    18,410.60x = 25,455.78 × 16,077.80
  4. Step 4: Simplify right side
    18,410.60x = 409,272,939.68
  5. Step 5: Solve for x
    x = 409,272,939.68/18,410.60
  6. Step 6: Final answer
    x = 22,230.29

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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.