Home / 20,132.72-30,199.70-9,603.88

Finding the Fourth Proportional to 20,132.72, 30,199.70 and 9,603.88

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Solution

The fourth proportional to 20,132.72, 30,199.70 and 9,603.88 is: 14,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.72 : 30,199.70 = 9,603.88 : x
  2. Step 2: Convert to fraction form
    20,132.72/30,199.70 = 9,603.88/x
  3. Step 3: Cross multiply
    20,132.72x = 30,199.70 × 9,603.88
  4. Step 4: Simplify right side
    20,132.72x = 290,034,243.35
  5. Step 5: Solve for x
    x = 290,034,243.35/20,132.72
  6. Step 6: Final answer
    x = 14,406.12

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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.