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Finding the Fourth Proportional to 29,007.38, 43,511.10 and 7,947.60

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Solution

The fourth proportional to 29,007.38, 43,511.10 and 7,947.60 is: 11,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,007.38 : 43,511.10 = 7,947.60 : x
  2. Step 2: Convert to fraction form
    29,007.38/43,511.10 = 7,947.60/x
  3. Step 3: Cross multiply
    29,007.38x = 43,511.10 × 7,947.60
  4. Step 4: Simplify right side
    29,007.38x = 345,808,818.36
  5. Step 5: Solve for x
    x = 345,808,818.36/29,007.38
  6. Step 6: Final answer
    x = 11,921.41

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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.