Home / 20,325.04-30,486.84-7,177.12

Finding the Fourth Proportional to 20,325.04, 30,486.84 and 7,177.12

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Solution

The fourth proportional to 20,325.04, 30,486.84 and 7,177.12 is: 10,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.04 : 30,486.84 = 7,177.12 : x
  2. Step 2: Convert to fraction form
    20,325.04/30,486.84 = 7,177.12/x
  3. Step 3: Cross multiply
    20,325.04x = 30,486.84 × 7,177.12
  4. Step 4: Simplify right side
    20,325.04x = 218,807,709.10
  5. Step 5: Solve for x
    x = 218,807,709.10/20,325.04
  6. Step 6: Final answer
    x = 10,765.43

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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.