Home / 20,724.96-31,078.31-5,930.51

Finding the Fourth Proportional to 20,724.96, 31,078.31 and 5,930.51

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Solution

The fourth proportional to 20,724.96, 31,078.31 and 5,930.51 is: 8,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.96 : 31,078.31 = 5,930.51 : x
  2. Step 2: Convert to fraction form
    20,724.96/31,078.31 = 5,930.51/x
  3. Step 3: Cross multiply
    20,724.96x = 31,078.31 × 5,930.51
  4. Step 4: Simplify right side
    20,724.96x = 184,310,276.28
  5. Step 5: Solve for x
    x = 184,310,276.28/20,724.96
  6. Step 6: Final answer
    x = 8,893.15

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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.