Home / 20,172.04-30,245.72-8,322.14

Finding the Fourth Proportional to 20,172.04, 30,245.72 and 8,322.14

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Solution

The fourth proportional to 20,172.04, 30,245.72 and 8,322.14 is: 12,478.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.04 : 30,245.72 = 8,322.14 : x
  2. Step 2: Convert to fraction form
    20,172.04/30,245.72 = 8,322.14/x
  3. Step 3: Cross multiply
    20,172.04x = 30,245.72 × 8,322.14
  4. Step 4: Simplify right side
    20,172.04x = 251,709,116.24
  5. Step 5: Solve for x
    x = 251,709,116.24/20,172.04
  6. Step 6: Final answer
    x = 12,478.12

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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.