Home / 27,874.08-38,450.16-16,689.60

Finding the Fourth Proportional to 27,874.08, 38,450.16 and 16,689.60

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Solution

The fourth proportional to 27,874.08, 38,450.16 and 16,689.60 is: 23,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,874.08 : 38,450.16 = 16,689.60 : x
  2. Step 2: Convert to fraction form
    27,874.08/38,450.16 = 16,689.60/x
  3. Step 3: Cross multiply
    27,874.08x = 38,450.16 × 16,689.60
  4. Step 4: Simplify right side
    27,874.08x = 641,717,790.34
  5. Step 5: Solve for x
    x = 641,717,790.34/27,874.08
  6. Step 6: Final answer
    x = 23,022.03

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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.