Home / 28,906.20-39,891.29-16,160.75

Finding the Fourth Proportional to 28,906.20, 39,891.29 and 16,160.75

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Solution

The fourth proportional to 28,906.20, 39,891.29 and 16,160.75 is: 22,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.20 : 39,891.29 = 16,160.75 : x
  2. Step 2: Convert to fraction form
    28,906.20/39,891.29 = 16,160.75/x
  3. Step 3: Cross multiply
    28,906.20x = 39,891.29 × 16,160.75
  4. Step 4: Simplify right side
    28,906.20x = 644,672,884.61
  5. Step 5: Solve for x
    x = 644,672,884.61/28,906.20
  6. Step 6: Final answer
    x = 22,302.24

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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.