Home / 20,135.45-30,189.83-9,607.08

Finding the Fourth Proportional to 20,135.45, 30,189.83 and 9,607.08

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Solution

The fourth proportional to 20,135.45, 30,189.83 and 9,607.08 is: 14,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.45 : 30,189.83 = 9,607.08 : x
  2. Step 2: Convert to fraction form
    20,135.45/30,189.83 = 9,607.08/x
  3. Step 3: Cross multiply
    20,135.45x = 30,189.83 × 9,607.08
  4. Step 4: Simplify right side
    20,135.45x = 290,036,063.96
  5. Step 5: Solve for x
    x = 290,036,063.96/20,135.45
  6. Step 6: Final answer
    x = 14,404.25

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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.