Home / 20,172.80-30,259.42-6,135.11

Finding the Fourth Proportional to 20,172.80, 30,259.42 and 6,135.11

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Solution

The fourth proportional to 20,172.80, 30,259.42 and 6,135.11 is: 9,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.80 : 30,259.42 = 6,135.11 : x
  2. Step 2: Convert to fraction form
    20,172.80/30,259.42 = 6,135.11/x
  3. Step 3: Cross multiply
    20,172.80x = 30,259.42 × 6,135.11
  4. Step 4: Simplify right side
    20,172.80x = 185,644,870.24
  5. Step 5: Solve for x
    x = 185,644,870.24/20,172.80
  6. Step 6: Final answer
    x = 9,202.73

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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.