Home / 28,780.12-39,716.96-16,032.95

Finding the Fourth Proportional to 28,780.12, 39,716.96 and 16,032.95

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Solution

The fourth proportional to 28,780.12, 39,716.96 and 16,032.95 is: 22,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.12 : 39,716.96 = 16,032.95 : x
  2. Step 2: Convert to fraction form
    28,780.12/39,716.96 = 16,032.95/x
  3. Step 3: Cross multiply
    28,780.12x = 39,716.96 × 16,032.95
  4. Step 4: Simplify right side
    28,780.12x = 636,780,033.83
  5. Step 5: Solve for x
    x = 636,780,033.83/28,780.12
  6. Step 6: Final answer
    x = 22,125.69

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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.