Home / 18,187.40-27,208.20-16,437.80

Finding the Fourth Proportional to 18,187.40, 27,208.20 and 16,437.80

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Solution

The fourth proportional to 18,187.40, 27,208.20 and 16,437.80 is: 24,590.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.40 : 27,208.20 = 16,437.80 : x
  2. Step 2: Convert to fraction form
    18,187.40/27,208.20 = 16,437.80/x
  3. Step 3: Cross multiply
    18,187.40x = 27,208.20 × 16,437.80
  4. Step 4: Simplify right side
    18,187.40x = 447,242,949.96
  5. Step 5: Solve for x
    x = 447,242,949.96/18,187.40
  6. Step 6: Final answer
    x = 24,590.81

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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.