Home / 28,021.16-38,651.49-16,682.18

Finding the Fourth Proportional to 28,021.16, 38,651.49 and 16,682.18

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Solution

The fourth proportional to 28,021.16, 38,651.49 and 16,682.18 is: 23,010.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.16 : 38,651.49 = 16,682.18 : x
  2. Step 2: Convert to fraction form
    28,021.16/38,651.49 = 16,682.18/x
  3. Step 3: Cross multiply
    28,021.16x = 38,651.49 × 16,682.18
  4. Step 4: Simplify right side
    28,021.16x = 644,790,920.19
  5. Step 5: Solve for x
    x = 644,790,920.19/28,021.16
  6. Step 6: Final answer
    x = 23,010.86

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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.