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Finding the Fourth Proportional to 29,418.40, 44,062.80 and 20,605.60

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Solution

The fourth proportional to 29,418.40, 44,062.80 and 20,605.60 is: 30,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,418.40 : 44,062.80 = 20,605.60 : x
  2. Step 2: Convert to fraction form
    29,418.40/44,062.80 = 20,605.60/x
  3. Step 3: Cross multiply
    29,418.40x = 44,062.80 × 20,605.60
  4. Step 4: Simplify right side
    29,418.40x = 907,940,431.68
  5. Step 5: Solve for x
    x = 907,940,431.68/29,418.40
  6. Step 6: Final answer
    x = 30,863.01

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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.