Home / 20,300.72-30,450.35-9,199.63

Finding the Fourth Proportional to 20,300.72, 30,450.35 and 9,199.63

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Solution

The fourth proportional to 20,300.72, 30,450.35 and 9,199.63 is: 13,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.72 : 30,450.35 = 9,199.63 : x
  2. Step 2: Convert to fraction form
    20,300.72/30,450.35 = 9,199.63/x
  3. Step 3: Cross multiply
    20,300.72x = 30,450.35 × 9,199.63
  4. Step 4: Simplify right side
    20,300.72x = 280,132,014.43
  5. Step 5: Solve for x
    x = 280,132,014.43/20,300.72
  6. Step 6: Final answer
    x = 13,799.12

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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.