Home / 20,208.96-30,326.34-9,815.04

Finding the Fourth Proportional to 20,208.96, 30,326.34 and 9,815.04

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Solution

The fourth proportional to 20,208.96, 30,326.34 and 9,815.04 is: 14,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.96 : 30,326.34 = 9,815.04 : x
  2. Step 2: Convert to fraction form
    20,208.96/30,326.34 = 9,815.04/x
  3. Step 3: Cross multiply
    20,208.96x = 30,326.34 × 9,815.04
  4. Step 4: Simplify right side
    20,208.96x = 297,654,240.15
  5. Step 5: Solve for x
    x = 297,654,240.15/20,208.96
  6. Step 6: Final answer
    x = 14,728.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.