Home / 20,000.12-30,005.66-8,753.42

Finding the Fourth Proportional to 20,000.12, 30,005.66 and 8,753.42

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Solution

The fourth proportional to 20,000.12, 30,005.66 and 8,753.42 is: 13,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.12 : 30,005.66 = 8,753.42 : x
  2. Step 2: Convert to fraction form
    20,000.12/30,005.66 = 8,753.42/x
  3. Step 3: Cross multiply
    20,000.12x = 30,005.66 × 8,753.42
  4. Step 4: Simplify right side
    20,000.12x = 262,652,100.59
  5. Step 5: Solve for x
    x = 262,652,100.59/20,000.12
  6. Step 6: Final answer
    x = 13,132.53

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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.