Home / 18,619.86-27,941.58-16,868.38

Finding the Fourth Proportional to 18,619.86, 27,941.58 and 16,868.38

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Solution

The fourth proportional to 18,619.86, 27,941.58 and 16,868.38 is: 25,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.86 : 27,941.58 = 16,868.38 : x
  2. Step 2: Convert to fraction form
    18,619.86/27,941.58 = 16,868.38/x
  3. Step 3: Cross multiply
    18,619.86x = 27,941.58 × 16,868.38
  4. Step 4: Simplify right side
    18,619.86x = 471,329,189.24
  5. Step 5: Solve for x
    x = 471,329,189.24/18,619.86
  6. Step 6: Final answer
    x = 25,313.25

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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.