Home / 20,761.26-31,138.55-5,966.81

Finding the Fourth Proportional to 20,761.26, 31,138.55 and 5,966.81

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Solution

The fourth proportional to 20,761.26, 31,138.55 and 5,966.81 is: 8,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.26 : 31,138.55 = 5,966.81 : x
  2. Step 2: Convert to fraction form
    20,761.26/31,138.55 = 5,966.81/x
  3. Step 3: Cross multiply
    20,761.26x = 31,138.55 × 5,966.81
  4. Step 4: Simplify right side
    20,761.26x = 185,797,626.00
  5. Step 5: Solve for x
    x = 185,797,626.00/20,761.26
  6. Step 6: Final answer
    x = 8,949.25

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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.