Home / 30,270.88-45,396.68-10,003.87

Finding the Fourth Proportional to 30,270.88, 45,396.68 and 10,003.87

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Solution

The fourth proportional to 30,270.88, 45,396.68 and 10,003.87 is: 15,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.88 : 45,396.68 = 10,003.87 : x
  2. Step 2: Convert to fraction form
    30,270.88/45,396.68 = 10,003.87/x
  3. Step 3: Cross multiply
    30,270.88x = 45,396.68 × 10,003.87
  4. Step 4: Simplify right side
    30,270.88x = 454,142,485.15
  5. Step 5: Solve for x
    x = 454,142,485.15/30,270.88
  6. Step 6: Final answer
    x = 15,002.62

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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.