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Finding the Fourth Proportional to 34,420.74, 51,631.11 and 12,234.99

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Solution

The fourth proportional to 34,420.74, 51,631.11 and 12,234.99 is: 18,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,420.74 : 51,631.11 = 12,234.99 : x
  2. Step 2: Convert to fraction form
    34,420.74/51,631.11 = 12,234.99/x
  3. Step 3: Cross multiply
    34,420.74x = 51,631.11 × 12,234.99
  4. Step 4: Simplify right side
    34,420.74x = 631,706,114.54
  5. Step 5: Solve for x
    x = 631,706,114.54/34,420.74
  6. Step 6: Final answer
    x = 18,352.49

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Similar ratio
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1.5x scale

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.