Home / 30,634.20-45,954.15-11,915.67

Finding the Fourth Proportional to 30,634.20, 45,954.15 and 11,915.67

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Solution

The fourth proportional to 30,634.20, 45,954.15 and 11,915.67 is: 17,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634.20 : 45,954.15 = 11,915.67 : x
  2. Step 2: Convert to fraction form
    30,634.20/45,954.15 = 11,915.67/x
  3. Step 3: Cross multiply
    30,634.20x = 45,954.15 × 11,915.67
  4. Step 4: Simplify right side
    30,634.20x = 547,574,486.53
  5. Step 5: Solve for x
    x = 547,574,486.53/30,634.20
  6. Step 6: Final answer
    x = 17,874.61

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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.