Home / 20,604.16-30,905.64-5,021.56

Finding the Fourth Proportional to 20,604.16, 30,905.64 and 5,021.56

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Solution

The fourth proportional to 20,604.16, 30,905.64 and 5,021.56 is: 7,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.16 : 30,905.64 = 5,021.56 : x
  2. Step 2: Convert to fraction form
    20,604.16/30,905.64 = 5,021.56/x
  3. Step 3: Cross multiply
    20,604.16x = 30,905.64 × 5,021.56
  4. Step 4: Simplify right side
    20,604.16x = 155,194,525.60
  5. Step 5: Solve for x
    x = 155,194,525.60/20,604.16
  6. Step 6: Final answer
    x = 7,532.19

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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.