Home / 20,501.88-30,757.62-8,808.60

Finding the Fourth Proportional to 20,501.88, 30,757.62 and 8,808.60

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Solution

The fourth proportional to 20,501.88, 30,757.62 and 8,808.60 is: 13,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.88 : 30,757.62 = 8,808.60 : x
  2. Step 2: Convert to fraction form
    20,501.88/30,757.62 = 8,808.60/x
  3. Step 3: Cross multiply
    20,501.88x = 30,757.62 × 8,808.60
  4. Step 4: Simplify right side
    20,501.88x = 270,931,571.53
  5. Step 5: Solve for x
    x = 270,931,571.53/20,501.88
  6. Step 6: Final answer
    x = 13,214.96

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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.