Home / 28,803.38-39,759.81-22,517.78

Finding the Fourth Proportional to 28,803.38, 39,759.81 and 22,517.78

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Solution

The fourth proportional to 28,803.38, 39,759.81 and 22,517.78 is: 31,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803.38 : 39,759.81 = 22,517.78 : x
  2. Step 2: Convert to fraction form
    28,803.38/39,759.81 = 22,517.78/x
  3. Step 3: Cross multiply
    28,803.38x = 39,759.81 × 22,517.78
  4. Step 4: Simplify right side
    28,803.38x = 895,302,654.42
  5. Step 5: Solve for x
    x = 895,302,654.42/28,803.38
  6. Step 6: Final answer
    x = 31,083.25

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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.