Home / 28,808.48-39,757.20-16,234.40

Finding the Fourth Proportional to 28,808.48, 39,757.20 and 16,234.40

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Solution

The fourth proportional to 28,808.48, 39,757.20 and 16,234.40 is: 22,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.48 : 39,757.20 = 16,234.40 : x
  2. Step 2: Convert to fraction form
    28,808.48/39,757.20 = 16,234.40/x
  3. Step 3: Cross multiply
    28,808.48x = 39,757.20 × 16,234.40
  4. Step 4: Simplify right side
    28,808.48x = 645,434,287.68
  5. Step 5: Solve for x
    x = 645,434,287.68/28,808.48
  6. Step 6: Final answer
    x = 22,404.32

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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.