Home / 20,216.08-30,327.35-8,531.02

Finding the Fourth Proportional to 20,216.08, 30,327.35 and 8,531.02

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Solution

The fourth proportional to 20,216.08, 30,327.35 and 8,531.02 is: 12,797.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.08 : 30,327.35 = 8,531.02 : x
  2. Step 2: Convert to fraction form
    20,216.08/30,327.35 = 8,531.02/x
  3. Step 3: Cross multiply
    20,216.08x = 30,327.35 × 8,531.02
  4. Step 4: Simplify right side
    20,216.08x = 258,723,229.40
  5. Step 5: Solve for x
    x = 258,723,229.40/20,216.08
  6. Step 6: Final answer
    x = 12,797.89

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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.