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Finding the Fourth Proportional to 29,943.60, 44,915.40 and 20,029.20

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Solution

The fourth proportional to 29,943.60, 44,915.40 and 20,029.20 is: 30,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,943.60 : 44,915.40 = 20,029.20 : x
  2. Step 2: Convert to fraction form
    29,943.60/44,915.40 = 20,029.20/x
  3. Step 3: Cross multiply
    29,943.60x = 44,915.40 × 20,029.20
  4. Step 4: Simplify right side
    29,943.60x = 899,619,529.68
  5. Step 5: Solve for x
    x = 899,619,529.68/29,943.60
  6. Step 6: Final answer
    x = 30,043.80

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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.