Home / 30,522.42-45,778.91-11,811.15

Finding the Fourth Proportional to 30,522.42, 45,778.91 and 11,811.15

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Solution

The fourth proportional to 30,522.42, 45,778.91 and 11,811.15 is: 17,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.42 : 45,778.91 = 11,811.15 : x
  2. Step 2: Convert to fraction form
    30,522.42/45,778.91 = 11,811.15/x
  3. Step 3: Cross multiply
    30,522.42x = 45,778.91 × 11,811.15
  4. Step 4: Simplify right side
    30,522.42x = 540,701,513.79
  5. Step 5: Solve for x
    x = 540,701,513.79/30,522.42
  6. Step 6: Final answer
    x = 17,714.90

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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.