Home / 40,099.10-55,338.24-21,951.10

Finding the Fourth Proportional to 40,099.10, 55,338.24 and 21,951.10

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Solution

The fourth proportional to 40,099.10, 55,338.24 and 21,951.10 is: 30,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,099.10 : 55,338.24 = 21,951.10 : x
  2. Step 2: Convert to fraction form
    40,099.10/55,338.24 = 21,951.10/x
  3. Step 3: Cross multiply
    40,099.10x = 55,338.24 × 21,951.10
  4. Step 4: Simplify right side
    40,099.10x = 1,214,735,268.08
  5. Step 5: Solve for x
    x = 1,214,735,268.08/40,099.10
  6. Step 6: Final answer
    x = 30,293.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.