Home / 20,403.19-30,609.70-8,550.46

Finding the Fourth Proportional to 20,403.19, 30,609.70 and 8,550.46

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Solution

The fourth proportional to 20,403.19, 30,609.70 and 8,550.46 is: 12,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.19 : 30,609.70 = 8,550.46 : x
  2. Step 2: Convert to fraction form
    20,403.19/30,609.70 = 8,550.46/x
  3. Step 3: Cross multiply
    20,403.19x = 30,609.70 × 8,550.46
  4. Step 4: Simplify right side
    20,403.19x = 261,727,032.35
  5. Step 5: Solve for x
    x = 261,727,032.35/20,403.19
  6. Step 6: Final answer
    x = 12,827.75

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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.