Home / 20,749.39-31,119.35-5,958.19

Finding the Fourth Proportional to 20,749.39, 31,119.35 and 5,958.19

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Solution

The fourth proportional to 20,749.39, 31,119.35 and 5,958.19 is: 8,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.39 : 31,119.35 = 5,958.19 : x
  2. Step 2: Convert to fraction form
    20,749.39/31,119.35 = 5,958.19/x
  3. Step 3: Cross multiply
    20,749.39x = 31,119.35 × 5,958.19
  4. Step 4: Simplify right side
    20,749.39x = 185,414,970.19
  5. Step 5: Solve for x
    x = 185,414,970.19/20,749.39
  6. Step 6: Final answer
    x = 8,935.92

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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.