Home / 20,327.09-30,489.66-8,475.98

Finding the Fourth Proportional to 20,327.09, 30,489.66 and 8,475.98

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Solution

The fourth proportional to 20,327.09, 30,489.66 and 8,475.98 is: 12,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.09 : 30,489.66 = 8,475.98 : x
  2. Step 2: Convert to fraction form
    20,327.09/30,489.66 = 8,475.98/x
  3. Step 3: Cross multiply
    20,327.09x = 30,489.66 × 8,475.98
  4. Step 4: Simplify right side
    20,327.09x = 258,429,595.92
  5. Step 5: Solve for x
    x = 258,429,595.92/20,327.09
  6. Step 6: Final answer
    x = 12,713.56

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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.