Home / 39,284.22-54,232.31-30,311.58

Finding the Fourth Proportional to 39,284.22, 54,232.31 and 30,311.58

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Solution

The fourth proportional to 39,284.22, 54,232.31 and 30,311.58 is: 41,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,284.22 : 54,232.31 = 30,311.58 : x
  2. Step 2: Convert to fraction form
    39,284.22/54,232.31 = 30,311.58/x
  3. Step 3: Cross multiply
    39,284.22x = 54,232.31 × 30,311.58
  4. Step 4: Simplify right side
    39,284.22x = 1,643,867,003.15
  5. Step 5: Solve for x
    x = 1,643,867,003.15/39,284.22
  6. Step 6: Final answer
    x = 41,845.48

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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.