Home / 20,555.32-30,835.06-5,764.28

Finding the Fourth Proportional to 20,555.32, 30,835.06 and 5,764.28

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Solution

The fourth proportional to 20,555.32, 30,835.06 and 5,764.28 is: 8,647.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.32 : 30,835.06 = 5,764.28 : x
  2. Step 2: Convert to fraction form
    20,555.32/30,835.06 = 5,764.28/x
  3. Step 3: Cross multiply
    20,555.32x = 30,835.06 × 5,764.28
  4. Step 4: Simplify right side
    20,555.32x = 177,741,919.66
  5. Step 5: Solve for x
    x = 177,741,919.66/20,555.32
  6. Step 6: Final answer
    x = 8,647.00

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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.