Home / 20,647.80-30,971.67-5,856.84

Finding the Fourth Proportional to 20,647.80, 30,971.67 and 5,856.84

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Solution

The fourth proportional to 20,647.80, 30,971.67 and 5,856.84 is: 8,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.80 : 30,971.67 = 5,856.84 : x
  2. Step 2: Convert to fraction form
    20,647.80/30,971.67 = 5,856.84/x
  3. Step 3: Cross multiply
    20,647.80x = 30,971.67 × 5,856.84
  4. Step 4: Simplify right side
    20,647.80x = 181,396,115.72
  5. Step 5: Solve for x
    x = 181,396,115.72/20,647.80
  6. Step 6: Final answer
    x = 8,785.25

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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.