Home / 28,156.80-38,845.33-18,083.85

Finding the Fourth Proportional to 28,156.80, 38,845.33 and 18,083.85

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Solution

The fourth proportional to 28,156.80, 38,845.33 and 18,083.85 is: 24,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.80 : 38,845.33 = 18,083.85 : x
  2. Step 2: Convert to fraction form
    28,156.80/38,845.33 = 18,083.85/x
  3. Step 3: Cross multiply
    28,156.80x = 38,845.33 × 18,083.85
  4. Step 4: Simplify right side
    28,156.80x = 702,473,120.92
  5. Step 5: Solve for x
    x = 702,473,120.92/28,156.80
  6. Step 6: Final answer
    x = 24,948.61

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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.