Home / 29,137.55-43,706.25-12,486.78

Finding the Fourth Proportional to 29,137.55, 43,706.25 and 12,486.78

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Solution

The fourth proportional to 29,137.55, 43,706.25 and 12,486.78 is: 18,730.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,137.55 : 43,706.25 = 12,486.78 : x
  2. Step 2: Convert to fraction form
    29,137.55/43,706.25 = 12,486.78/x
  3. Step 3: Cross multiply
    29,137.55x = 43,706.25 × 12,486.78
  4. Step 4: Simplify right side
    29,137.55x = 545,750,328.38
  5. Step 5: Solve for x
    x = 545,750,328.38/29,137.55
  6. Step 6: Final answer
    x = 18,730.14

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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.