Home / 28,854.43-39,787.69-18,764.14

Finding the Fourth Proportional to 28,854.43, 39,787.69 and 18,764.14

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Solution

The fourth proportional to 28,854.43, 39,787.69 and 18,764.14 is: 25,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.43 : 39,787.69 = 18,764.14 : x
  2. Step 2: Convert to fraction form
    28,854.43/39,787.69 = 18,764.14/x
  3. Step 3: Cross multiply
    28,854.43x = 39,787.69 × 18,764.14
  4. Step 4: Simplify right side
    28,854.43x = 746,581,785.44
  5. Step 5: Solve for x
    x = 746,581,785.44/28,854.43
  6. Step 6: Final answer
    x = 25,874.08

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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.