Home / 28,824.18-39,787.29-16,891.38

Finding the Fourth Proportional to 28,824.18, 39,787.29 and 16,891.38

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Solution

The fourth proportional to 28,824.18, 39,787.29 and 16,891.38 is: 23,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824.18 : 39,787.29 = 16,891.38 : x
  2. Step 2: Convert to fraction form
    28,824.18/39,787.29 = 16,891.38/x
  3. Step 3: Cross multiply
    28,824.18x = 39,787.29 × 16,891.38
  4. Step 4: Simplify right side
    28,824.18x = 672,062,234.56
  5. Step 5: Solve for x
    x = 672,062,234.56/28,824.18
  6. Step 6: Final answer
    x = 23,315.92

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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.