Home / 20,383.72-30,577.20-8,697.04

Finding the Fourth Proportional to 20,383.72, 30,577.20 and 8,697.04

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Solution

The fourth proportional to 20,383.72, 30,577.20 and 8,697.04 is: 13,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.72 : 30,577.20 = 8,697.04 : x
  2. Step 2: Convert to fraction form
    20,383.72/30,577.20 = 8,697.04/x
  3. Step 3: Cross multiply
    20,383.72x = 30,577.20 × 8,697.04
  4. Step 4: Simplify right side
    20,383.72x = 265,931,131.49
  5. Step 5: Solve for x
    x = 265,931,131.49/20,383.72
  6. Step 6: Final answer
    x = 13,046.25

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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.