Home / 40,993.43-61,492.34-12,915.68

Finding the Fourth Proportional to 40,993.43, 61,492.34 and 12,915.68

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Solution

The fourth proportional to 40,993.43, 61,492.34 and 12,915.68 is: 19,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,993.43 : 61,492.34 = 12,915.68 : x
  2. Step 2: Convert to fraction form
    40,993.43/61,492.34 = 12,915.68/x
  3. Step 3: Cross multiply
    40,993.43x = 61,492.34 × 12,915.68
  4. Step 4: Simplify right side
    40,993.43x = 794,215,110.72
  5. Step 5: Solve for x
    x = 794,215,110.72/40,993.43
  6. Step 6: Final answer
    x = 19,374.21

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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.