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Finding the Fourth Proportional to 29,443.60, 44,107.80 and 20,112.40

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Solution

The fourth proportional to 29,443.60, 44,107.80 and 20,112.40 is: 30,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,443.60 : 44,107.80 = 20,112.40 : x
  2. Step 2: Convert to fraction form
    29,443.60/44,107.80 = 20,112.40/x
  3. Step 3: Cross multiply
    29,443.60x = 44,107.80 × 20,112.40
  4. Step 4: Simplify right side
    29,443.60x = 887,113,716.72
  5. Step 5: Solve for x
    x = 887,113,716.72/29,443.60
  6. Step 6: Final answer
    x = 30,129.25

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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.