Home / 18,166.20-27,249.30-15,703.80

Finding the Fourth Proportional to 18,166.20, 27,249.30 and 15,703.80

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Solution

The fourth proportional to 18,166.20, 27,249.30 and 15,703.80 is: 23,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.20 : 27,249.30 = 15,703.80 : x
  2. Step 2: Convert to fraction form
    18,166.20/27,249.30 = 15,703.80/x
  3. Step 3: Cross multiply
    18,166.20x = 27,249.30 × 15,703.80
  4. Step 4: Simplify right side
    18,166.20x = 427,917,557.34
  5. Step 5: Solve for x
    x = 427,917,557.34/18,166.20
  6. Step 6: Final answer
    x = 23,555.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.