Home / 30,286.19-45,401.21-13,410.21

Finding the Fourth Proportional to 30,286.19, 45,401.21 and 13,410.21

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Solution

The fourth proportional to 30,286.19, 45,401.21 and 13,410.21 is: 20,102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.19 : 45,401.21 = 13,410.21 : x
  2. Step 2: Convert to fraction form
    30,286.19/45,401.21 = 13,410.21/x
  3. Step 3: Cross multiply
    30,286.19x = 45,401.21 × 13,410.21
  4. Step 4: Simplify right side
    30,286.19x = 608,839,743.59
  5. Step 5: Solve for x
    x = 608,839,743.59/30,286.19
  6. Step 6: Final answer
    x = 20,102.88

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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.