Home / 28,351.72-39,120.33-16,414.48

Finding the Fourth Proportional to 28,351.72, 39,120.33 and 16,414.48

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Solution

The fourth proportional to 28,351.72, 39,120.33 and 16,414.48 is: 22,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.72 : 39,120.33 = 16,414.48 : x
  2. Step 2: Convert to fraction form
    28,351.72/39,120.33 = 16,414.48/x
  3. Step 3: Cross multiply
    28,351.72x = 39,120.33 × 16,414.48
  4. Step 4: Simplify right side
    28,351.72x = 642,139,874.38
  5. Step 5: Solve for x
    x = 642,139,874.38/28,351.72
  6. Step 6: Final answer
    x = 22,649.06

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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.