Home / 28,780.79-39,716.61-16,033.96

Finding the Fourth Proportional to 28,780.79, 39,716.61 and 16,033.96

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Solution

The fourth proportional to 28,780.79, 39,716.61 and 16,033.96 is: 22,126.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.79 : 39,716.61 = 16,033.96 : x
  2. Step 2: Convert to fraction form
    28,780.79/39,716.61 = 16,033.96/x
  3. Step 3: Cross multiply
    28,780.79x = 39,716.61 × 16,033.96
  4. Step 4: Simplify right side
    28,780.79x = 636,814,525.59
  5. Step 5: Solve for x
    x = 636,814,525.59/28,780.79
  6. Step 6: Final answer
    x = 22,126.38

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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.