Home / 28,780.92-39,716.26-16,028.28

Finding the Fourth Proportional to 28,780.92, 39,716.26 and 16,028.28

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Solution

The fourth proportional to 28,780.92, 39,716.26 and 16,028.28 is: 22,118.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.92 : 39,716.26 = 16,028.28 : x
  2. Step 2: Convert to fraction form
    28,780.92/39,716.26 = 16,028.28/x
  3. Step 3: Cross multiply
    28,780.92x = 39,716.26 × 16,028.28
  4. Step 4: Simplify right side
    28,780.92x = 636,583,335.83
  5. Step 5: Solve for x
    x = 636,583,335.83/28,780.92
  6. Step 6: Final answer
    x = 22,118.24

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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.