Home / 20,314.79-30,475.99-9,222.25

Finding the Fourth Proportional to 20,314.79, 30,475.99 and 9,222.25

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Solution

The fourth proportional to 20,314.79, 30,475.99 and 9,222.25 is: 13,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.79 : 30,475.99 = 9,222.25 : x
  2. Step 2: Convert to fraction form
    20,314.79/30,475.99 = 9,222.25/x
  3. Step 3: Cross multiply
    20,314.79x = 30,475.99 × 9,222.25
  4. Step 4: Simplify right side
    20,314.79x = 281,057,198.78
  5. Step 5: Solve for x
    x = 281,057,198.78/20,314.79
  6. Step 6: Final answer
    x = 13,835.11

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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.