Home / 28,809.50-39,757.11-16,234.70

Finding the Fourth Proportional to 28,809.50, 39,757.11 and 16,234.70

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Solution

The fourth proportional to 28,809.50, 39,757.11 and 16,234.70 is: 22,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.50 : 39,757.11 = 16,234.70 : x
  2. Step 2: Convert to fraction form
    28,809.50/39,757.11 = 16,234.70/x
  3. Step 3: Cross multiply
    28,809.50x = 39,757.11 × 16,234.70
  4. Step 4: Simplify right side
    28,809.50x = 645,444,753.72
  5. Step 5: Solve for x
    x = 645,444,753.72/28,809.50
  6. Step 6: Final answer
    x = 22,403.89

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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.