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Finding the Fourth Proportional to 29,907.60, 44,861.40 and 19,993.20

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Solution

The fourth proportional to 29,907.60, 44,861.40 and 19,993.20 is: 29,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,907.60 : 44,861.40 = 19,993.20 : x
  2. Step 2: Convert to fraction form
    29,907.60/44,861.40 = 19,993.20/x
  3. Step 3: Cross multiply
    29,907.60x = 44,861.40 × 19,993.20
  4. Step 4: Simplify right side
    29,907.60x = 896,922,942.48
  5. Step 5: Solve for x
    x = 896,922,942.48/29,907.60
  6. Step 6: Final answer
    x = 29,989.80

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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.